Attachment 108426 Details for Bug 85466 – related part of kern.log file

related part of kern.log file

kern.log (text/plain), 685.62 KB, created by snthlrcg0987 on 2014-10-26 05:07:07 UTC

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Creator: snthlrcg0987

Created: 2014-10-26 05:07:07 UTC

Size: 685.62 KB

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obsolete

>Oct 26 00:43:08 4720z kernel: [242523.988084] [drm] stuck on render ring
>Oct 26 00:43:08 4720z kernel: [242523.988096] [drm] GPU crash dump saved to /sys/class/drm/card0/error
>Oct 26 00:43:08 4720z kernel: [242523.988101] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
>Oct 26 00:43:08 4720z kernel: [242523.988106] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
>Oct 26 00:43:08 4720z kernel: [242523.988110] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
>Oct 26 00:43:08 4720z kernel: [242523.988115] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
>Oct 26 00:43:08 4720z kernel: [242523.989889] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0xd32a000 ctx 0) at 0xd32aadc
>Oct 26 00:43:08 4720z kernel: [242524.496024] [drm:i915_reset] *ERROR* Failed to reset chip.
>Oct 26 00:43:18 4720z kernel: [242533.988090] [drm:i915_gem_wait_for_error] *ERROR* Timed out waiting for the gpu reset to complete
>Oct 26 00:43:18 4720z kernel: [242533.988107] [drm:i915_gem_wait_for_error] *ERROR* Timed out waiting for the gpu reset to complete
>Oct 26 00:43:18 4720z kernel: [242534.148091] [drm:i915_gem_wait_for_error] *ERROR* Timed out waiting for the gpu reset to complete
>Oct 26 00:43:18 4720z kernel: [242534.204095] [drm] GMBUS [i915 gmbus vga] timed out, falling back to bit banging on pin 2
>Oct 26 00:43:18 4720z kernel: [242534.233298] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.233356] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.233360] PLL state assertion failure (expected on, current off)
>Oct 26 00:43:18 4720z kernel: [242534.233363] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.233470] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.233473] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.233476]  00000000 00000000 eeeadc50 c1683110 f89adb0c eeeadc80 c1059c54 f89afb04
>Oct 26 00:43:18 4720z kernel: [242534.233484]  eeeadcac 000008bf f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:43:18 4720z kernel: [242534.233492]  00000001 eeeadc98 c1059d13 00000009 eeeadc90 f89afb04 eeeadcac eeeadcbc
>Oct 26 00:43:18 4720z kernel: [242534.233500] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.233510]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.233518]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.233551]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233580]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233584]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.233615]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233651]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233680]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233709]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233738]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233767]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233797]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233826]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233869]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.233884]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.233908]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.233914]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.233935]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.233941]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.233946]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.233951]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.233956]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.233961]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.233965]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.233969]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.233974]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.233977] ---[ end trace b7ca82141b65d0a8 ]---
>Oct 26 00:43:18 4720z kernel: [242534.234048] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.234076] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.234079] PLL state assertion failure (expected on, current off)
>Oct 26 00:43:18 4720z kernel: [242534.234081] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.234185] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.234188] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.234191]  00000000 00000000 eeeadc54 c1683110 f89adb0c eeeadc84 c1059c54 f89afb04
>Oct 26 00:43:18 4720z kernel: [242534.234198]  eeeadcb0 000008bf f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:43:18 4720z kernel: [242534.234206]  00000001 eeeadc9c c1059d13 00000009 eeeadc94 f89afb04 eeeadcb0 eeeadcc0
>Oct 26 00:43:18 4720z kernel: [242534.234214] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.234220]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.234229]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.234263]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234293]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234298]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.234329]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234367]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234396]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234426]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234456]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234486]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234515]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234558]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.234572]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.234595]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.234599]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.234621]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.234626]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.234631]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.234635]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.234639]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.234644]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.234648]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.234652]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.234657]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.234660] ---[ end trace b7ca82141b65d0a9 ]---
>Oct 26 00:43:18 4720z kernel: [242534.296046] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.296109] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.296113] pipe B assertion failure (expected on, current off)
>Oct 26 00:43:18 4720z kernel: [242534.296115] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.296223] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.296225] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.296229]  00000000 00000000 eeeadc3c c1683110 f89adb0c eeeadc6c c1059c54 f89afcfc
>Oct 26 00:43:18 4720z kernel: [242534.296237]  eeeadc98 000008bf f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000042
>Oct 26 00:43:18 4720z kernel: [242534.296244]  00001000 eeeadc84 c1059d13 00000009 eeeadc7c f89afcfc eeeadc98 eeeadcc0
>Oct 26 00:43:18 4720z kernel: [242534.296252] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.296263]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.296272]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.296337]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296367]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296372]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.296403]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296445]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296474]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296504]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296533]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296563]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296592]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296636]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.296651]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.296676]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.296707]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.296731]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.296737]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.296744]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.296748]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.296753]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.296758]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.296763]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.296767]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.296772]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.296776] ---[ end trace b7ca82141b65d0aa ]---
>Oct 26 00:43:18 4720z kernel: [242534.360096] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.360191] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.360197] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:43:18 4720z kernel: [242534.360202] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.360426] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.360432] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.360438]  00000000 00000000 eeeadcb4 c1683110 f89adb0c eeeadce4 c1059c54 f89adfb8
>Oct 26 00:43:18 4720z kernel: [242534.360456]  eeeadd10 000008bf f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:43:18 4720z kernel: [242534.360472]  f7015000 eeeadcfc c1059d13 00000009 eeeadcf4 f89adfb8 eeeadd10 eeeadd3c
>Oct 26 00:43:18 4720z kernel: [242534.360489] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.360506]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.360523]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.360593]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.360655]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.360665]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.360730]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.360841]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.360911]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.360974]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.361067]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.361097]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.361145]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.361157]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.361203]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.361215]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.361226]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.361235]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.361245]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.361256]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.361264]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.361273]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.361284]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.361291] ---[ end trace b7ca82141b65d0ab ]---
>Oct 26 00:43:18 4720z kernel: [242534.361299] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.361358] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.361364] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:43:18 4720z kernel: [242534.361368] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.361590] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.361595] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.361600]  00000000 00000000 eeeadcb4 c1683110 f89adb0c eeeadce4 c1059c54 f89adfb8
>Oct 26 00:43:18 4720z kernel: [242534.361616]  eeeadd10 000008bf f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:43:18 4720z kernel: [242534.361632]  f7014000 eeeadcfc c1059d13 00000009 eeeadcf4 f89adfb8 eeeadd10 eeeadd3c
>Oct 26 00:43:18 4720z kernel: [242534.361649] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.361660]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.361675]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.361744]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.361805]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.361815]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.361880]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.361956]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.362019]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.362082]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.362181]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.362209]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.362255]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.362264]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.362310]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.362320]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.362331]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.362340]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.362349]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.362358]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.362366]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.362375]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.362385]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.362391] ---[ end trace b7ca82141b65d0ac ]---
>Oct 26 00:43:18 4720z kernel: [242534.362398] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.362457] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.362463] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:43:18 4720z kernel: [242534.362467] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.362684] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.362690] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.362694]  00000000 00000000 eeeada84 c1683110 f89adb0c eeeadab4 c1059c54 f89af608
>Oct 26 00:43:18 4720z kernel: [242534.362710]  eeeadae0 000008bf f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:43:18 4720z kernel: [242534.362727]  00000000 eeeadacc c1059d13 00000009 eeeadac4 f89af608 eeeadae0 eeeadd3c
>Oct 26 00:43:18 4720z kernel: [242534.362743] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.362754]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.362768]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.362838]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.362900]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.362910]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.362975]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.363053]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.363116]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.363179]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.363271]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.363299]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.363344]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.363353]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.363400]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.363417]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.363427]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.363436]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.363445]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.363455]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.363463]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.363472]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.363481]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.363487] ---[ end trace b7ca82141b65d0ad ]---
>Oct 26 00:43:18 4720z kernel: [242534.363493] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.363552] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.363558] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:43:18 4720z kernel: [242534.363562] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.363779] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.363785] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.363789]  00000000 00000000 eeeada84 c1683110 f89adb0c eeeadab4 c1059c54 f89af608
>Oct 26 00:43:18 4720z kernel: [242534.363806]  eeeadae0 000008bf f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:43:18 4720z kernel: [242534.363822]  00000000 eeeadacc c1059d13 00000009 eeeadac4 f89af608 eeeadae0 eeeadd3c
>Oct 26 00:43:18 4720z kernel: [242534.363838] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.363849]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.363863]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.363933]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.363995]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.364004]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.364117]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.364217]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.364299]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.364379]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.364481]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.364510]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.364555]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.364565]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.364612]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.364622]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.364632]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.364641]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.364649]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.364659]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.364667]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.364676]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.364685]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.364691] ---[ end trace b7ca82141b65d0ae ]---
>Oct 26 00:43:18 4720z kernel: [242534.556095] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.556154] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.556158] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:43:18 4720z kernel: [242534.556160] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.556274] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.556277] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.556280]  00000000 00000000 eeeadcbc c1683110 f89adb0c eeeadcec c1059c54 f89adfb8
>Oct 26 00:43:18 4720z kernel: [242534.556288]  eeeadd18 000008bf f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:43:18 4720z kernel: [242534.556295]  f7015000 eeeadd04 c1059d13 00000009 eeeadcfc f89adfb8 eeeadd18 eeeadd44
>Oct 26 00:43:18 4720z kernel: [242534.556303] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.556314]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.556322]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.556355]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556383]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556388]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.556418]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556454]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556483]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556512]  [<f896527c>] intel_release_load_detect_pipe+0xcc/0x100 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556556]  [<f898b1c0>] intel_tv_detect+0x150/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556570]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.556595]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.556601]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.556622]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.556628]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.556634]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.556638]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.556643]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.556648]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.556652]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.556656]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.556661]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.556665] ---[ end trace b7ca82141b65d0af ]---
>Oct 26 00:43:18 4720z kernel: [242534.556670] ------------[ cut here ]------------
>Oct 26 00:43:18 4720z kernel: [242534.556697] WARNING: CPU: 0 PID: 2239 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:43:18 4720z kernel: [242534.556700] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:43:18 4720z kernel: [242534.556702] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:18 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:18 4720z kernel: [242534.556804] CPU: 0 PID: 2239 Comm: upowerd Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:18 4720z kernel: [242534.556806] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:18 4720z kernel: [242534.556808]  00000000 00000000 eeeada8c c1683110 f89adb0c eeeadabc c1059c54 f89af608
>Oct 26 00:43:18 4720z kernel: [242534.556816]  eeeadae8 000008bf f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:43:18 4720z kernel: [242534.556823]  00000000 eeeadad4 c1059d13 00000009 eeeadacc f89af608 eeeadae8 eeeadd44
>Oct 26 00:43:18 4720z kernel: [242534.556831] Call Trace:
>Oct 26 00:43:18 4720z kernel: [242534.556836]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:18 4720z kernel: [242534.556843]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.556875]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556904]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556908]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:18 4720z kernel: [242534.556939]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.556975]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.557004]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.557033]  [<f896527c>] intel_release_load_detect_pipe+0xcc/0x100 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.557075]  [<f898b1c0>] intel_tv_detect+0x150/0x230 [i915]
>Oct 26 00:43:18 4720z kernel: [242534.557088]  [<c1312101>] ? lockref_get_not_dead+0x11/0x40
>Oct 26 00:43:18 4720z kernel: [242534.557109]  [<f880cbed>] status_show+0x3d/0x80 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.557113]  [<c116fcb4>] ? __kmalloc+0xa4/0x210
>Oct 26 00:43:18 4720z kernel: [242534.557135]  [<f880cbb0>] ? dpms_show+0x60/0x60 [drm]
>Oct 26 00:43:18 4720z kernel: [242534.557139]  [<c1425e0f>] dev_attr_show+0x1f/0x50
>Oct 26 00:43:18 4720z kernel: [242534.557144]  [<c11e7d23>] sysfs_seq_show+0x103/0x1e0
>Oct 26 00:43:18 4720z kernel: [242534.557148]  [<c1425df0>] ? root_device_unregister+0x30/0x30
>Oct 26 00:43:18 4720z kernel: [242534.557152]  [<c11a38be>] seq_read+0xde/0x360
>Oct 26 00:43:18 4720z kernel: [242534.557156]  [<c11850a4>] vfs_read+0x84/0x160
>Oct 26 00:43:18 4720z kernel: [242534.557160]  [<c11a37e0>] ? seq_lseek+0x160/0x160
>Oct 26 00:43:18 4720z kernel: [242534.557164]  [<c1185307>] SyS_read+0x57/0xa0
>Oct 26 00:43:18 4720z kernel: [242534.557168]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:18 4720z kernel: [242534.557171] ---[ end trace b7ca82141b65d0b0 ]---
>Oct 26 00:43:58 4720z kernel: [242574.004848] ------------[ cut here ]------------
>Oct 26 00:43:58 4720z kernel: [242574.004944] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:43:58 4720z kernel: [242574.004947] PLL state assertion failure (expected on, current off)
>Oct 26 00:43:58 4720z kernel: [242574.005022] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:58 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:58 4720z kernel: [242574.005086] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:58 4720z kernel: [242574.005088] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:58 4720z kernel: [242574.005099]  00000000 00000000 f2255b48 c1683110 f89adb0c f2255b78 c1059c54 f89afb04
>Oct 26 00:43:58 4720z kernel: [242574.005108]  f2255ba4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:43:58 4720z kernel: [242574.005116]  00000000 f2255b90 c1059d13 00000009 f2255b88 f89afb04 f2255ba4 f2255bb4
>Oct 26 00:43:58 4720z kernel: [242574.005118] Call Trace:
>Oct 26 00:43:58 4720z kernel: [242574.005132]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:58 4720z kernel: [242574.005146]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:58 4720z kernel: [242574.005214]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.005274]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.005280]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:58 4720z kernel: [242574.005344]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.005421]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.005443]  [<f875cff1>] drm_fb_helper_setcmap+0x101/0x130 [drm_kms_helper]
>Oct 26 00:43:58 4720z kernel: [242574.005456]  [<c136cc10>] fb_set_cmap+0x60/0x120
>Oct 26 00:43:58 4720z kernel: [242574.005475]  [<f875cecd>] ? drm_fb_helper_pan_display+0x9d/0xc0 [drm_kms_helper]
>Oct 26 00:43:58 4720z kernel: [242574.005483]  [<c13686a9>] ? fb_pan_display+0xb9/0x160
>Oct 26 00:43:58 4720z kernel: [242574.005490]  [<c1374fbb>] fbcon_set_palette+0x13b/0x160
>Oct 26 00:43:58 4720z kernel: [242574.005495]  [<c1377828>] fbcon_switch+0x3d8/0x580
>Oct 26 00:43:58 4720z kernel: [242574.005505]  [<c13f6b23>] redraw_screen+0x133/0x1d0
>Oct 26 00:43:58 4720z kernel: [242574.005510]  [<c1375c65>] fbcon_blank+0x245/0x310
>Oct 26 00:43:58 4720z kernel: [242574.005519]  [<c13f74dc>] do_unblank_screen.part.18+0x8c/0x150
>Oct 26 00:43:58 4720z kernel: [242574.005525]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:43:58 4720z kernel: [242574.005532]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:43:58 4720z kernel: [242574.005538]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:43:58 4720z kernel: [242574.005594]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:43:58 4720z kernel: [242574.005606]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:43:58 4720z kernel: [242574.005614]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:43:58 4720z kernel: [242574.005621]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:43:58 4720z kernel: [242574.005628]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:43:58 4720z kernel: [242574.005636]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:43:58 4720z kernel: [242574.005642]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:43:58 4720z kernel: [242574.005649]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:43:58 4720z kernel: [242574.005655]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:43:58 4720z kernel: [242574.005661]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:58 4720z kernel: [242574.005665] ---[ end trace b7ca82141b65d0b1 ]---
>Oct 26 00:43:58 4720z kernel: [242574.005759] ------------[ cut here ]------------
>Oct 26 00:43:58 4720z kernel: [242574.005819] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:43:58 4720z kernel: [242574.005821] PLL state assertion failure (expected on, current off)
>Oct 26 00:43:58 4720z kernel: [242574.005894] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:58 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:58 4720z kernel: [242574.005955] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:58 4720z kernel: [242574.005957] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:58 4720z kernel: [242574.005967]  00000000 00000000 f2255c0c c1683110 f89adb0c f2255c3c c1059c54 f89afb04
>Oct 26 00:43:58 4720z kernel: [242574.005976]  f2255c68 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:43:58 4720z kernel: [242574.005984]  00000000 f2255c54 c1059d13 00000009 f2255c4c f89afb04 f2255c68 f2255c78
>Oct 26 00:43:58 4720z kernel: [242574.005986] Call Trace:
>Oct 26 00:43:58 4720z kernel: [242574.005995]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:58 4720z kernel: [242574.006008]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:58 4720z kernel: [242574.006076]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.006137]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.006182]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:58 4720z kernel: [242574.006248]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.006326]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.006350]  [<f875cff1>] drm_fb_helper_setcmap+0x101/0x130 [drm_kms_helper]
>Oct 26 00:43:58 4720z kernel: [242574.006362]  [<c136cc10>] fb_set_cmap+0x60/0x120
>Oct 26 00:43:58 4720z kernel: [242574.006370]  [<c1374fbb>] fbcon_set_palette+0x13b/0x160
>Oct 26 00:43:58 4720z kernel: [242574.006376]  [<c13f5bf6>] set_palette+0x36/0x60
>Oct 26 00:43:58 4720z kernel: [242574.006382]  [<c13f6b2d>] redraw_screen+0x13d/0x1d0
>Oct 26 00:43:58 4720z kernel: [242574.006387]  [<c1375c65>] fbcon_blank+0x245/0x310
>Oct 26 00:43:58 4720z kernel: [242574.006396]  [<c13f74dc>] do_unblank_screen.part.18+0x8c/0x150
>Oct 26 00:43:58 4720z kernel: [242574.006402]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:43:58 4720z kernel: [242574.006409]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:43:58 4720z kernel: [242574.006415]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:43:58 4720z kernel: [242574.006469]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:43:58 4720z kernel: [242574.006482]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:43:58 4720z kernel: [242574.006490]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:43:58 4720z kernel: [242574.006496]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:43:58 4720z kernel: [242574.006503]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:43:58 4720z kernel: [242574.006510]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:43:58 4720z kernel: [242574.006517]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:43:58 4720z kernel: [242574.006523]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:43:58 4720z kernel: [242574.006529]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:43:58 4720z kernel: [242574.006535]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:58 4720z kernel: [242574.006539] ---[ end trace b7ca82141b65d0b2 ]---
>Oct 26 00:43:58 4720z kernel: [242574.019003] ------------[ cut here ]------------
>Oct 26 00:43:58 4720z kernel: [242574.019098] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:43:58 4720z kernel: [242574.019101] PLL state assertion failure (expected on, current off)
>Oct 26 00:43:58 4720z kernel: [242574.019172] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:43:58 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:43:58 4720z kernel: [242574.019235] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:43:58 4720z kernel: [242574.019237] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:43:58 4720z kernel: [242574.019249]  00000000 00000000 f2255cf8 c1683110 f89adb0c f2255d28 c1059c54 f89afb04
>Oct 26 00:43:58 4720z kernel: [242574.019257]  f2255d54 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:43:58 4720z kernel: [242574.019266]  00000000 f2255d40 c1059d13 00000009 f2255d38 f89afb04 f2255d54 f2255d64
>Oct 26 00:43:58 4720z kernel: [242574.019268] Call Trace:
>Oct 26 00:43:58 4720z kernel: [242574.019285]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:43:58 4720z kernel: [242574.019292]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:43:58 4720z kernel: [242574.019323]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.019366]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.019369]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:43:58 4720z kernel: [242574.019398]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.019433]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:43:58 4720z kernel: [242574.019444]  [<f875cff1>] drm_fb_helper_setcmap+0x101/0x130 [drm_kms_helper]
>Oct 26 00:43:58 4720z kernel: [242574.019451]  [<c136cc10>] fb_set_cmap+0x60/0x120
>Oct 26 00:43:58 4720z kernel: [242574.019455]  [<c1374fbb>] fbcon_set_palette+0x13b/0x160
>Oct 26 00:43:58 4720z kernel: [242574.019459]  [<c13f5bf6>] set_palette+0x36/0x60
>Oct 26 00:43:58 4720z kernel: [242574.019462]  [<c13f750d>] do_unblank_screen.part.18+0xbd/0x150
>Oct 26 00:43:58 4720z kernel: [242574.019465]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:43:58 4720z kernel: [242574.019469]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:43:58 4720z kernel: [242574.019471]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:43:58 4720z kernel: [242574.019500]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:43:58 4720z kernel: [242574.019505]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:43:58 4720z kernel: [242574.019510]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:43:58 4720z kernel: [242574.019515]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:43:58 4720z kernel: [242574.019518]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:43:58 4720z kernel: [242574.019523]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:43:58 4720z kernel: [242574.019526]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:43:58 4720z kernel: [242574.019530]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:43:58 4720z kernel: [242574.019532]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:43:58 4720z kernel: [242574.019535]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:43:58 4720z kernel: [242574.019538] ---[ end trace b7ca82141b65d0b3 ]---
>Oct 26 00:44:12 4720z kernel: [242587.972961] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242587.973064] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:12 4720z kernel: [242587.973071] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:12 4720z kernel: [242587.973076] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242587.973309] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242587.973315] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242587.973321]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:12 4720z kernel: [242587.973339]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:12 4720z kernel: [242587.973355]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:12 4720z kernel: [242587.973372] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242587.973390]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242587.973410]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242587.973481]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242587.973544]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242587.973554]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242587.973621]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242587.973700]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:12 4720z kernel: [242587.973763]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242587.973819]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:12 4720z kernel: [242587.973861]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242587.973926]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:12 4720z kernel: [242587.973944]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:44:12 4720z kernel: [242587.973955]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242587.973993]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242587.974004]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242587.974013]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242587.974023]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242587.974030] ---[ end trace b7ca82141b65d0b4 ]---
>Oct 26 00:44:12 4720z kernel: [242588.072612] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.072694] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.072699] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:12 4720z kernel: [242588.072703] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.072875] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.072880] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.072884]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:12 4720z kernel: [242588.072897]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:12 4720z kernel: [242588.072909]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:12 4720z kernel: [242588.072922] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.072936]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.072949]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.073003]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.073050]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.073058]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.073107]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.073167]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.073214]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.073256]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.073288]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.073336]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.073369]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.073378]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.073385]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.073393]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.073398] ---[ end trace b7ca82141b65d0b5 ]---
>Oct 26 00:44:12 4720z kernel: [242588.109715] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.109773] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.109777] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:12 4720z kernel: [242588.109779] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.109887] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.109890] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.109893]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:12 4720z kernel: [242588.109901]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:12 4720z kernel: [242588.109909]  00000001 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:12 4720z kernel: [242588.109917] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.109927]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.109935]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.109968]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.109997]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110002]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.110033]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110069]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110098]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110127]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110156]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110186]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110215]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110244]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110287]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110310]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.110344]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.110368]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.110395]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.110424]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.110433]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.110450]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.110455]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.110460]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.110464]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.110468] ---[ end trace b7ca82141b65d0b6 ]---
>Oct 26 00:44:12 4720z kernel: [242588.110522] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.110550] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.110552] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:12 4720z kernel: [242588.110554] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.110655] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.110658] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.110660]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:12 4720z kernel: [242588.110667]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:12 4720z kernel: [242588.110675]  00000001 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:12 4720z kernel: [242588.110682] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.110687]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.110694]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.110726]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110755]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110760]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.110790]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110827]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110855]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110884]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110914]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110943]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.110972]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.111014]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.111035]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.111066]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.111089]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.111115]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.111145]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.111152]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.111169]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.111174]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.111178]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.111182]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.111185] ---[ end trace b7ca82141b65d0b7 ]---
>Oct 26 00:44:12 4720z kernel: [242588.172049] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.172151] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.172156] pipe B assertion failure (expected on, current off)
>Oct 26 00:44:12 4720z kernel: [242588.172158] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.172272] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.172275] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.172278]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:12 4720z kernel: [242588.172287]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000042
>Oct 26 00:44:12 4720z kernel: [242588.172295]  00001000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:12 4720z kernel: [242588.172303] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.172321]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.172331]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.172368]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172398]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172402]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.172433]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172476]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172506]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172537]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172569]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172599]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172629]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172673]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.172696]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.172737]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.172763]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.172791]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.172821]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.172832]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.172850]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.172857]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.172862]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.172868]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.172871] ---[ end trace b7ca82141b65d0b8 ]---
>Oct 26 00:44:12 4720z kernel: [242588.236086] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.236143] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.236147] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:12 4720z kernel: [242588.236149] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.236255] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.236258] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.236261]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:12 4720z kernel: [242588.236269]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:44:12 4720z kernel: [242588.236277]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:12 4720z kernel: [242588.236285] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.236295]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.236303]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.236336]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236364]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236369]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.236399]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236436]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236465]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236494]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236537]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236560]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.236594]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.236618]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.236645]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.236674]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.236683]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.236700]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.236705]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.236710]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.236715]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.236718] ---[ end trace b7ca82141b65d0b9 ]---
>Oct 26 00:44:12 4720z kernel: [242588.236722] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.236749] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.236752] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:12 4720z kernel: [242588.236754] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.236855] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.236857] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.236859]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:12 4720z kernel: [242588.236867]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:12 4720z kernel: [242588.236874]  f7014000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:12 4720z kernel: [242588.236882] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.236887]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.236893]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.236925]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236954]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.236958]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.236988]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237024]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237053]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237082]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237125]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237146]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.237177]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.237200]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.237358]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.237389]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.237398]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.237415]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.237420]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.237424]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.237429]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.237432] ---[ end trace b7ca82141b65d0ba ]---
>Oct 26 00:44:12 4720z kernel: [242588.237436] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.237465] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.237468] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:12 4720z kernel: [242588.237470] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.237571] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.237574] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.237576]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:12 4720z kernel: [242588.237584]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:12 4720z kernel: [242588.237591]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:12 4720z kernel: [242588.237599] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.237604]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.237612]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.237644]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237673]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237776]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.237811]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237848]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237879]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237909]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237955]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.237978]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.238010]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238034]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238061]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238200]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238211]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.238229]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238235]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.238239]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.238244]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.238247] ---[ end trace b7ca82141b65d0bb ]---
>Oct 26 00:44:12 4720z kernel: [242588.238253] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.238283] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.238285] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:12 4720z kernel: [242588.238287] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.238393] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.238395] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.238398]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:12 4720z kernel: [242588.238405]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:44:12 4720z kernel: [242588.238413]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:12 4720z kernel: [242588.238420] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.238427]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.238436]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.238470]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.238500]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.238505]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.238536]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.238572]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.238602]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.238631]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.238675]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.238697]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.238729]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238754]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238781]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238811]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238909]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.238928]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.238933]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.238937]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.238941]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.238945] ---[ end trace b7ca82141b65d0bc ]---
>Oct 26 00:44:12 4720z kernel: [242588.428138] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.428232] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.428239] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:12 4720z kernel: [242588.428244] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.428470] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.428477] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.428483]  00000000 00000000 f2255b9c c1683110 f89adb0c f2255bcc c1059c54 f89adfb8
>Oct 26 00:44:12 4720z kernel: [242588.428500]  f2255bf8 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:44:12 4720z kernel: [242588.428517]  f7015000 f2255be4 c1059d13 00000009 f2255bdc f89adfb8 f2255bf8 f2255c24
>Oct 26 00:44:12 4720z kernel: [242588.428534] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.428551]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.428567]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.428638]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.428699]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.428710]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.428775]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.428853]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.428916]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.428980]  [<f896527c>] intel_release_load_detect_pipe+0xcc/0x100 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.429073]  [<f898b1c0>] intel_tv_detect+0x150/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.429121]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.429191]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.429243]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.429299]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.429362]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.429380]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.429417]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.429428]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.429438]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.429448]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.429455] ---[ end trace b7ca82141b65d0bd ]---
>Oct 26 00:44:12 4720z kernel: [242588.429465] ------------[ cut here ]------------
>Oct 26 00:44:12 4720z kernel: [242588.429524] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:12 4720z kernel: [242588.429530] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:12 4720z kernel: [242588.429534] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:12 4720z kernel: [242588.429752] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:12 4720z kernel: [242588.429758] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:12 4720z kernel: [242588.429762]  00000000 00000000 f225596c c1683110 f89adb0c f225599c c1059c54 f89af608
>Oct 26 00:44:12 4720z kernel: [242588.429779]  f22559c8 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:12 4720z kernel: [242588.429795]  00000000 f22559b4 c1059d13 00000009 f22559ac f89af608 f22559c8 f2255c24
>Oct 26 00:44:12 4720z kernel: [242588.429812] Call Trace:
>Oct 26 00:44:12 4720z kernel: [242588.429823]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:12 4720z kernel: [242588.429837]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.429907]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.429969]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.429979]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:12 4720z kernel: [242588.430046]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.430124]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.430187]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.430265]  [<f896527c>] intel_release_load_detect_pipe+0xcc/0x100 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.430366]  [<f898b1c0>] intel_tv_detect+0x150/0x230 [i915]
>Oct 26 00:44:12 4720z kernel: [242588.430413]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:12 4720z kernel: [242588.430481]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.430531]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.430588]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.430651]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.430668]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:44:12 4720z kernel: [242588.430705]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:12 4720z kernel: [242588.430715]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:12 4720z kernel: [242588.430725]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:12 4720z kernel: [242588.430733]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:12 4720z kernel: [242588.430740] ---[ end trace b7ca82141b65d0be ]---
>Oct 26 00:44:13 4720z kernel: [242588.911780] ------------[ cut here ]------------
>Oct 26 00:44:13 4720z kernel: [242588.911843] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:13 4720z kernel: [242588.911847] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:13 4720z kernel: [242588.911849] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:13 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:13 4720z kernel: [242588.911956] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:13 4720z kernel: [242588.911959] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:13 4720z kernel: [242588.911962]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:13 4720z kernel: [242588.911970]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:13 4720z kernel: [242588.911978]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:13 4720z kernel: [242588.911986] Call Trace:
>Oct 26 00:44:13 4720z kernel: [242588.911996]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:13 4720z kernel: [242588.912004]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:13 4720z kernel: [242588.912079]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:13 4720z kernel: [242588.912121]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:13 4720z kernel: [242588.912131]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:13 4720z kernel: [242588.912163]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:13 4720z kernel: [242588.912200]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:13 4720z kernel: [242588.912229]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:13 4720z kernel: [242588.912259]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:13 4720z kernel: [242588.912283]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:13 4720z kernel: [242588.912314]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:13 4720z kernel: [242588.912323]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:44:13 4720z kernel: [242588.912341]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:13 4720z kernel: [242588.912347]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:13 4720z kernel: [242588.912352]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:13 4720z kernel: [242588.912358]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:13 4720z kernel: [242588.912362] ---[ end trace b7ca82141b65d0bf ]---
>Oct 26 00:44:14 4720z kernel: [242590.452119] ------------[ cut here ]------------
>Oct 26 00:44:14 4720z kernel: [242590.452215] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:14 4720z kernel: [242590.452222] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:14 4720z kernel: [242590.452227] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:14 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:14 4720z kernel: [242590.452455] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:14 4720z kernel: [242590.452461] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:14 4720z kernel: [242590.452467]  00000000 00000000 f2255c90 c1683110 f89adb0c f2255cc0 c1059c54 f89afb04
>Oct 26 00:44:14 4720z kernel: [242590.452484]  f2255cec 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:14 4720z kernel: [242590.452501]  00000001 f2255cd8 c1059d13 00000009 f2255cd0 f89afb04 f2255cec f2255cfc
>Oct 26 00:44:14 4720z kernel: [242590.452518] Call Trace:
>Oct 26 00:44:14 4720z kernel: [242590.452535]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:14 4720z kernel: [242590.452551]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.452623]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.452685]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.452695]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:14 4720z kernel: [242590.452761]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.452840]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.452902]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.452965]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.453028]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.453078]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.453142]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.453205]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.453260]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.453307]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.453368]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.453431]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.453475]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.453486]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:14 4720z kernel: [242590.453496]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.453506]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:14 4720z kernel: [242590.453513] ---[ end trace b7ca82141b65d0c0 ]---
>Oct 26 00:44:14 4720z kernel: [242590.453604] ------------[ cut here ]------------
>Oct 26 00:44:14 4720z kernel: [242590.453664] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:14 4720z kernel: [242590.453669] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:14 4720z kernel: [242590.453673] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:14 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:14 4720z kernel: [242590.453890] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:14 4720z kernel: [242590.453896] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:14 4720z kernel: [242590.453900]  00000000 00000000 f2255c94 c1683110 f89adb0c f2255cc4 c1059c54 f89afb04
>Oct 26 00:44:14 4720z kernel: [242590.453917]  f2255cf0 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:14 4720z kernel: [242590.453933]  00000001 f2255cdc c1059d13 00000009 f2255cd4 f89afb04 f2255cf0 f2255d00
>Oct 26 00:44:14 4720z kernel: [242590.453949] Call Trace:
>Oct 26 00:44:14 4720z kernel: [242590.453960]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:14 4720z kernel: [242590.453974]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.454045]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454107]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454117]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:14 4720z kernel: [242590.454183]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454262]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454325]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454388]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454433]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.454497]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454560]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.454614]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.454660]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.454720]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.454784]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.454827]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.454837]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:14 4720z kernel: [242590.454847]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.454856]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:14 4720z kernel: [242590.454862] ---[ end trace b7ca82141b65d0c1 ]---
>Oct 26 00:44:14 4720z kernel: [242590.516080] ------------[ cut here ]------------
>Oct 26 00:44:14 4720z kernel: [242590.516171] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:14 4720z kernel: [242590.516178] pipe B assertion failure (expected on, current off)
>Oct 26 00:44:14 4720z kernel: [242590.516183] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:14 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:14 4720z kernel: [242590.516407] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:14 4720z kernel: [242590.516413] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:14 4720z kernel: [242590.516419]  00000000 00000000 f2255c7c c1683110 f89adb0c f2255cac c1059c54 f89afcfc
>Oct 26 00:44:14 4720z kernel: [242590.516436]  f2255cd8 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000042
>Oct 26 00:44:14 4720z kernel: [242590.516453]  00001000 f2255cc4 c1059d13 00000009 f2255cbc f89afcfc f2255cd8 f2255d00
>Oct 26 00:44:14 4720z kernel: [242590.516470] Call Trace:
>Oct 26 00:44:14 4720z kernel: [242590.516486]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:14 4720z kernel: [242590.516502]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.516573]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.516636]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.516646]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:14 4720z kernel: [242590.516712]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.516803]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.516866]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.516929]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.516978]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.517042]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.517105]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.517160]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.517207]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.517267]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.517330]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.517374]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.517384]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:14 4720z kernel: [242590.517394]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.517404]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:14 4720z kernel: [242590.517411] ---[ end trace b7ca82141b65d0c2 ]---
>Oct 26 00:44:14 4720z kernel: [242590.580096] ------------[ cut here ]------------
>Oct 26 00:44:14 4720z kernel: [242590.580189] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:14 4720z kernel: [242590.580196] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:14 4720z kernel: [242590.580200] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:14 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:14 4720z kernel: [242590.580425] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:14 4720z kernel: [242590.580431] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:14 4720z kernel: [242590.580437]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:44:14 4720z kernel: [242590.580454]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:44:14 4720z kernel: [242590.580470]  f7015000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:44:14 4720z kernel: [242590.580487] Call Trace:
>Oct 26 00:44:14 4720z kernel: [242590.580503]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:14 4720z kernel: [242590.580520]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.580590]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.580652]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.580662]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:14 4720z kernel: [242590.580728]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.580805]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.580868]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.580931]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.580990]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.581038]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.581098]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.581162]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.581206]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.581217]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:14 4720z kernel: [242590.581227]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.581238]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:14 4720z kernel: [242590.581245] ---[ end trace b7ca82141b65d0c3 ]---
>Oct 26 00:44:14 4720z kernel: [242590.581253] ------------[ cut here ]------------
>Oct 26 00:44:14 4720z kernel: [242590.581311] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:14 4720z kernel: [242590.581317] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:14 4720z kernel: [242590.581321] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:14 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:14 4720z kernel: [242590.581539] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:14 4720z kernel: [242590.581544] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:14 4720z kernel: [242590.581549]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:44:14 4720z kernel: [242590.581565]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:14 4720z kernel: [242590.581582]  f7014000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:44:14 4720z kernel: [242590.581939] Call Trace:
>Oct 26 00:44:14 4720z kernel: [242590.581954]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:14 4720z kernel: [242590.581975]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.582047]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.582109]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.582120]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:14 4720z kernel: [242590.582186]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.582278]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.582350]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.582414]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.582472]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.582520]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.582582]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.582646]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.582691]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.582702]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:14 4720z kernel: [242590.582712]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.582723]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:14 4720z kernel: [242590.582730] ---[ end trace b7ca82141b65d0c4 ]---
>Oct 26 00:44:14 4720z kernel: [242590.582740] ------------[ cut here ]------------
>Oct 26 00:44:14 4720z kernel: [242590.582802] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:14 4720z kernel: [242590.582808] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:14 4720z kernel: [242590.582813] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:14 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:14 4720z kernel: [242590.583034] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:14 4720z kernel: [242590.583039] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:14 4720z kernel: [242590.583044]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:44:14 4720z kernel: [242590.583061]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:14 4720z kernel: [242590.583077]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:44:14 4720z kernel: [242590.583094] Call Trace:
>Oct 26 00:44:14 4720z kernel: [242590.583105]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:14 4720z kernel: [242590.583120]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.583191]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.583253]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.583263]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:14 4720z kernel: [242590.583330]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.583408]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.583471]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.583534]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.583589]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.583636]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.583696]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.583767]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.583811]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.583821]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:14 4720z kernel: [242590.583832]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.583841]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:14 4720z kernel: [242590.583847] ---[ end trace b7ca82141b65d0c5 ]---
>Oct 26 00:44:14 4720z kernel: [242590.583854] ------------[ cut here ]------------
>Oct 26 00:44:14 4720z kernel: [242590.583915] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:14 4720z kernel: [242590.583921] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:14 4720z kernel: [242590.583925] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:14 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:14 4720z kernel: [242590.584207] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:14 4720z kernel: [242590.584212] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:14 4720z kernel: [242590.584218]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:44:14 4720z kernel: [242590.584234]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:44:14 4720z kernel: [242590.584250]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:44:14 4720z kernel: [242590.584267] Call Trace:
>Oct 26 00:44:14 4720z kernel: [242590.584282]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:14 4720z kernel: [242590.584300]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.584372]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.584436]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.584446]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:14 4720z kernel: [242590.584514]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.584594]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.584658]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.584722]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:14 4720z kernel: [242590.584782]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.584830]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.584891]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.584956]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.585000]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:14 4720z kernel: [242590.585013]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:14 4720z kernel: [242590.585022]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:14 4720z kernel: [242590.585033]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:14 4720z kernel: [242590.585040] ---[ end trace b7ca82141b65d0c6 ]---
>Oct 26 00:44:17 4720z kernel: [242593.609666] ------------[ cut here ]------------
>Oct 26 00:44:17 4720z kernel: [242593.609741] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:17 4720z kernel: [242593.609745] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:17 4720z kernel: [242593.609747] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:17 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:17 4720z kernel: [242593.609859] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:17 4720z kernel: [242593.609862] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:17 4720z kernel: [242593.609865]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:17 4720z kernel: [242593.609874]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:17 4720z kernel: [242593.609881]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:17 4720z kernel: [242593.609889] Call Trace:
>Oct 26 00:44:17 4720z kernel: [242593.609901]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:17 4720z kernel: [242593.609913]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.609949]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.609979]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.609984]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:17 4720z kernel: [242593.610015]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.610053]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.610082]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.610110]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.610130]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.610160]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.610169]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.610186]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.610192]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:17 4720z kernel: [242593.610196]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.610201]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:17 4720z kernel: [242593.610205] ---[ end trace b7ca82141b65d0c7 ]---
>Oct 26 00:44:17 4720z kernel: [242593.611281] ------------[ cut here ]------------
>Oct 26 00:44:17 4720z kernel: [242593.611348] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:17 4720z kernel: [242593.611351] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:17 4720z kernel: [242593.611353] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:17 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:17 4720z kernel: [242593.611461] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:17 4720z kernel: [242593.611464] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:17 4720z kernel: [242593.611467]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:17 4720z kernel: [242593.611475]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:17 4720z kernel: [242593.611483]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:17 4720z kernel: [242593.611491] Call Trace:
>Oct 26 00:44:17 4720z kernel: [242593.611501]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:17 4720z kernel: [242593.611510]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.611543]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.611572]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.611576]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:17 4720z kernel: [242593.611607]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.611644]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.611674]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.611702]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.611722]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.611753]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.611761]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.611778]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.611783]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:17 4720z kernel: [242593.611788]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.611794]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:17 4720z kernel: [242593.611797] ---[ end trace b7ca82141b65d0c8 ]---
>Oct 26 00:44:17 4720z kernel: [242593.614880] ------------[ cut here ]------------
>Oct 26 00:44:17 4720z kernel: [242593.614944] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:17 4720z kernel: [242593.614947] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:17 4720z kernel: [242593.614950] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:17 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:17 4720z kernel: [242593.615057] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:17 4720z kernel: [242593.615060] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:17 4720z kernel: [242593.615063]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:17 4720z kernel: [242593.615072]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:17 4720z kernel: [242593.615079]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:17 4720z kernel: [242593.615087] Call Trace:
>Oct 26 00:44:17 4720z kernel: [242593.615097]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:17 4720z kernel: [242593.615106]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.615139]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.615168]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.615173]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:17 4720z kernel: [242593.615203]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.615240]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.615269]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.615298]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.615317]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.615348]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.615356]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.615374]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.615380]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:17 4720z kernel: [242593.615384]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.615389]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:17 4720z kernel: [242593.615393] ---[ end trace b7ca82141b65d0c9 ]---
>Oct 26 00:44:17 4720z kernel: [242593.623354] ------------[ cut here ]------------
>Oct 26 00:44:17 4720z kernel: [242593.623420] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:17 4720z kernel: [242593.623424] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:17 4720z kernel: [242593.623426] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:17 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:17 4720z kernel: [242593.623538] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:17 4720z kernel: [242593.623541] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:17 4720z kernel: [242593.623544]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:17 4720z kernel: [242593.623552]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:17 4720z kernel: [242593.623560]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:17 4720z kernel: [242593.623568] Call Trace:
>Oct 26 00:44:17 4720z kernel: [242593.623581]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:17 4720z kernel: [242593.623592]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.623628]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.623659]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.623664]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:17 4720z kernel: [242593.623695]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.623731]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.623760]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.623788]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.623808]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.623838]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.623846]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.623864]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.623869]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:17 4720z kernel: [242593.623874]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.623879]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:17 4720z kernel: [242593.623882] ---[ end trace b7ca82141b65d0ca ]---
>Oct 26 00:44:17 4720z kernel: [242593.625593] ------------[ cut here ]------------
>Oct 26 00:44:17 4720z kernel: [242593.625654] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:17 4720z kernel: [242593.625657] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:17 4720z kernel: [242593.625660] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:17 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:17 4720z kernel: [242593.625769] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:17 4720z kernel: [242593.625772] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:17 4720z kernel: [242593.625775]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:44:17 4720z kernel: [242593.625783]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:17 4720z kernel: [242593.625791]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:44:17 4720z kernel: [242593.625799] Call Trace:
>Oct 26 00:44:17 4720z kernel: [242593.625808]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:17 4720z kernel: [242593.625817]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.625850]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.625878]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.625883]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:17 4720z kernel: [242593.625914]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.625950]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.625979]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:44:17 4720z kernel: [242593.626007]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.626027]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.626057]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.626065]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.626083]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:17 4720z kernel: [242593.626088]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:17 4720z kernel: [242593.626092]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:17 4720z kernel: [242593.626097]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:17 4720z kernel: [242593.626100] ---[ end trace b7ca82141b65d0cb ]---
>Oct 26 00:44:26 4720z kernel: [242602.552499] ------------[ cut here ]------------
>Oct 26 00:44:26 4720z kernel: [242602.552571] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:26 4720z kernel: [242602.552575] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:26 4720z kernel: [242602.552578] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:26 4720z kernel: [242602.552722] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:26 4720z kernel: [242602.552725] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:26 4720z kernel: [242602.552729]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:44:26 4720z kernel: [242602.552740]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:26 4720z kernel: [242602.552750]  f7014000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:44:26 4720z kernel: [242602.552760] Call Trace:
>Oct 26 00:44:26 4720z kernel: [242602.552772]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:26 4720z kernel: [242602.552784]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:26 4720z kernel: [242602.552827]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.552865]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.552872]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:26 4720z kernel: [242602.552911]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.552958]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553006]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553044]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553081]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553109]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553125]  [<c119694d>] ? core_sys_select+0x18d/0x290
>Oct 26 00:44:26 4720z kernel: [242602.553150]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553168]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:26 4720z kernel: [242602.553195]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553205]  [<c119866b>] ? dput+0x4b/0xe0
>Oct 26 00:44:26 4720z kernel: [242602.553227]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553233]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:26 4720z kernel: [242602.553239]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:26 4720z kernel: [242602.553245]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:26 4720z kernel: [242602.553249] ---[ end trace b7ca82141b65d0cc ]---
>Oct 26 00:44:26 4720z kernel: [242602.553255] ------------[ cut here ]------------
>Oct 26 00:44:26 4720z kernel: [242602.553291] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:26 4720z kernel: [242602.553295] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:26 4720z kernel: [242602.553298] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:26 4720z kernel: [242602.553429] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:26 4720z kernel: [242602.553432] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:26 4720z kernel: [242602.553435]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:44:26 4720z kernel: [242602.553445]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:44:26 4720z kernel: [242602.553455]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:44:26 4720z kernel: [242602.553464] Call Trace:
>Oct 26 00:44:26 4720z kernel: [242602.553471]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:26 4720z kernel: [242602.553480]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:26 4720z kernel: [242602.553522]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553559]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553565]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:26 4720z kernel: [242602.553605]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553652]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553691]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553730]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:26 4720z kernel: [242602.553765]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553793]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553809]  [<c119694d>] ? core_sys_select+0x18d/0x290
>Oct 26 00:44:26 4720z kernel: [242602.553835]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553852]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:26 4720z kernel: [242602.553880]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553891]  [<c119866b>] ? dput+0x4b/0xe0
>Oct 26 00:44:26 4720z kernel: [242602.553914]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:26 4720z kernel: [242602.553919]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:26 4720z kernel: [242602.553925]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:26 4720z kernel: [242602.553932]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:26 4720z kernel: [242602.553936] ---[ end trace b7ca82141b65d0cd ]---
>Oct 26 00:44:27 4720z kernel: [242602.825881] ------------[ cut here ]------------
>Oct 26 00:44:27 4720z kernel: [242602.825941] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:27 4720z kernel: [242602.825945] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:27 4720z kernel: [242602.825947] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:27 4720z kernel: [242602.826055] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:27 4720z kernel: [242602.826069] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:27 4720z kernel: [242602.826073]  00000000 00000000 f2255c90 c1683110 f89adb0c f2255cc0 c1059c54 f89afb04
>Oct 26 00:44:27 4720z kernel: [242602.826081]  f2255cec 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:27 4720z kernel: [242602.826088]  00000000 f2255cd8 c1059d13 00000009 f2255cd0 f89afb04 f2255cec f2255cfc
>Oct 26 00:44:27 4720z kernel: [242602.826096] Call Trace:
>Oct 26 00:44:27 4720z kernel: [242602.826106]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:27 4720z kernel: [242602.826115]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.826148]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826185]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826271]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:27 4720z kernel: [242602.826303]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826340]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826369]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826398]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826427]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826453]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.826482]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826511]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.826537]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.826559]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.826587]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.826601]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:27 4720z kernel: [242602.826622]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.826642]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.826647]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:27 4720z kernel: [242602.826652]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.826657]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:27 4720z kernel: [242602.826660] ---[ end trace b7ca82141b65d0ce ]---
>Oct 26 00:44:27 4720z kernel: [242602.826714] ------------[ cut here ]------------
>Oct 26 00:44:27 4720z kernel: [242602.826742] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:27 4720z kernel: [242602.826745] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:27 4720z kernel: [242602.826747] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:27 4720z kernel: [242602.826941] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:27 4720z kernel: [242602.826944] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:27 4720z kernel: [242602.826946]  00000000 00000000 f2255c94 c1683110 f89adb0c f2255cc4 c1059c54 f89afb04
>Oct 26 00:44:27 4720z kernel: [242602.826954]  f2255cf0 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:27 4720z kernel: [242602.826961]  00000000 f2255cdc c1059d13 00000009 f2255cd4 f89afb04 f2255cf0 f2255d00
>Oct 26 00:44:27 4720z kernel: [242602.826969] Call Trace:
>Oct 26 00:44:27 4720z kernel: [242602.826976]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:27 4720z kernel: [242602.826986]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.827020]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827049]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827054]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:27 4720z kernel: [242602.827085]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827122]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827151]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827181]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827204]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.827234]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827263]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.827388]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.827410]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.827438]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.827452]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:27 4720z kernel: [242602.827473]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.827493]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.827498]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:27 4720z kernel: [242602.827502]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.827508]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:27 4720z kernel: [242602.827511] ---[ end trace b7ca82141b65d0cf ]---
>Oct 26 00:44:27 4720z kernel: [242602.884066] ------------[ cut here ]------------
>Oct 26 00:44:27 4720z kernel: [242602.884169] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:27 4720z kernel: [242602.884176] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:27 4720z kernel: [242602.884181] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:27 4720z kernel: [242602.884424] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:27 4720z kernel: [242602.884429] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:27 4720z kernel: [242602.884435]  00000000 00000000 f2255c7c c1683110 f89adb0c f2255cac c1059c54 f89afcfc
>Oct 26 00:44:27 4720z kernel: [242602.884452]  f2255cd8 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:27 4720z kernel: [242602.884469]  00000000 f2255cc4 c1059d13 00000009 f2255cbc f89afcfc f2255cd8 f2255d00
>Oct 26 00:44:27 4720z kernel: [242602.884486] Call Trace:
>Oct 26 00:44:27 4720z kernel: [242602.884504]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:27 4720z kernel: [242602.884521]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.884593]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.884656]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.884720]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:27 4720z kernel: [242602.884791]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.884884]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.884947]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.885011]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.885061]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.885125]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.885189]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.885358]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.885405]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.885466]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.885494]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:27 4720z kernel: [242602.885540]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.885583]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.885594]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:27 4720z kernel: [242602.885604]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.885615]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:27 4720z kernel: [242602.885622] ---[ end trace b7ca82141b65d0d0 ]---
>Oct 26 00:44:27 4720z kernel: [242602.944135] ------------[ cut here ]------------
>Oct 26 00:44:27 4720z kernel: [242602.944230] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:27 4720z kernel: [242602.944237] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:27 4720z kernel: [242602.944241] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:27 4720z kernel: [242602.944469] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:27 4720z kernel: [242602.944475] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:27 4720z kernel: [242602.944481]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:44:27 4720z kernel: [242602.944498]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:27 4720z kernel: [242602.944515]  f7015000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:44:27 4720z kernel: [242602.944531] Call Trace:
>Oct 26 00:44:27 4720z kernel: [242602.944548]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:27 4720z kernel: [242602.944565]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.944635]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.944697]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.944707]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:27 4720z kernel: [242602.944772]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.944850]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.944913]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.944976]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.945035]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.945083]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.945143]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.945172]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:27 4720z kernel: [242602.945218]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.945261]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.945272]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:27 4720z kernel: [242602.945282]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.945293]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:27 4720z kernel: [242602.945299] ---[ end trace b7ca82141b65d0d1 ]---
>Oct 26 00:44:27 4720z kernel: [242602.945306] ------------[ cut here ]------------
>Oct 26 00:44:27 4720z kernel: [242602.945366] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:27 4720z kernel: [242602.945372] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:27 4720z kernel: [242602.945376] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:27 4720z kernel: [242602.945646] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:27 4720z kernel: [242602.945652] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:27 4720z kernel: [242602.945657]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:44:27 4720z kernel: [242602.945673]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:27 4720z kernel: [242602.945690]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:44:27 4720z kernel: [242602.945706] Call Trace:
>Oct 26 00:44:27 4720z kernel: [242602.945720]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:27 4720z kernel: [242602.945736]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.945808]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.945870]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.945880]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:27 4720z kernel: [242602.945947]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.946025]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.946088]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.946150]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:44:27 4720z kernel: [242602.946206]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.946253]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.946313]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.946340]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:27 4720z kernel: [242602.946386]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.946429]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:27 4720z kernel: [242602.946439]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:27 4720z kernel: [242602.946449]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:27 4720z kernel: [242602.946458]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:27 4720z kernel: [242602.946465] ---[ end trace b7ca82141b65d0d2 ]---
>Oct 26 00:44:45 4720z kernel: [242621.506834] ------------[ cut here ]------------
>Oct 26 00:44:45 4720z kernel: [242621.506922] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:45 4720z kernel: [242621.506926] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:45 4720z kernel: [242621.506929] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:45 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:45 4720z kernel: [242621.507046] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:45 4720z kernel: [242621.507049] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:45 4720z kernel: [242621.507052]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:45 4720z kernel: [242621.507061]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:45 4720z kernel: [242621.507068]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:45 4720z kernel: [242621.507076] Call Trace:
>Oct 26 00:44:45 4720z kernel: [242621.507088]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:45 4720z kernel: [242621.507099]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.507134]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507164]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507169]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:45 4720z kernel: [242621.507200]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507239]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507270]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507299]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507329]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507368]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507399]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507429]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507474]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.507639]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.507655]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:45 4720z kernel: [242621.507687]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.507711]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.507739]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.507754]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:45 4720z kernel: [242621.507775]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.507795]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.507801]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:45 4720z kernel: [242621.507806]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.507812]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:45 4720z kernel: [242621.507817]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:45 4720z kernel: [242621.507822] ---[ end trace b7ca82141b65d0d3 ]---
>Oct 26 00:44:45 4720z kernel: [242621.507981] ------------[ cut here ]------------
>Oct 26 00:44:45 4720z kernel: [242621.508014] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:45 4720z kernel: [242621.508043] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:45 4720z kernel: [242621.508045] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:45 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:45 4720z kernel: [242621.508152] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:45 4720z kernel: [242621.508155] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:45 4720z kernel: [242621.508158]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:45 4720z kernel: [242621.508165]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:45 4720z kernel: [242621.508173]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:45 4720z kernel: [242621.508180] Call Trace:
>Oct 26 00:44:45 4720z kernel: [242621.508188]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:45 4720z kernel: [242621.508197]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.508230]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508259]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508263]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:45 4720z kernel: [242621.508294]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508330]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508359]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508388]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508418]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508447]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508476]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508520]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.508553]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.508569]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:45 4720z kernel: [242621.508600]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.508625]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.508652]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.508665]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:45 4720z kernel: [242621.508687]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.508720]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.508725]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:45 4720z kernel: [242621.508729]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.508734]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:45 4720z kernel: [242621.508852]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:45 4720z kernel: [242621.508855] ---[ end trace b7ca82141b65d0d4 ]---
>Oct 26 00:44:45 4720z kernel: [242621.572060] ------------[ cut here ]------------
>Oct 26 00:44:45 4720z kernel: [242621.572124] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:45 4720z kernel: [242621.572128] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:45 4720z kernel: [242621.572130] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:45 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:45 4720z kernel: [242621.572237] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:45 4720z kernel: [242621.572240] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:45 4720z kernel: [242621.572243]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:45 4720z kernel: [242621.572251]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:45 4720z kernel: [242621.572259]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:45 4720z kernel: [242621.572267] Call Trace:
>Oct 26 00:44:45 4720z kernel: [242621.572277]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:45 4720z kernel: [242621.572286]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.572319]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572348]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572352]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:45 4720z kernel: [242621.572383]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572425]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572454]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572484]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572513]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572542]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572571]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572615]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.572649]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.572663]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:45 4720z kernel: [242621.572694]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.572718]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.572745]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.572758]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:45 4720z kernel: [242621.572779]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.572799]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.572804]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:45 4720z kernel: [242621.572809]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.572814]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:45 4720z kernel: [242621.572820]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:45 4720z kernel: [242621.572823] ---[ end trace b7ca82141b65d0d5 ]---
>Oct 26 00:44:45 4720z kernel: [242621.636095] ------------[ cut here ]------------
>Oct 26 00:44:45 4720z kernel: [242621.636190] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:45 4720z kernel: [242621.636197] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:45 4720z kernel: [242621.636202] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:45 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:45 4720z kernel: [242621.636429] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:45 4720z kernel: [242621.636435] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:45 4720z kernel: [242621.636441]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:45 4720z kernel: [242621.636458]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:45 4720z kernel: [242621.636475]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:45 4720z kernel: [242621.636492] Call Trace:
>Oct 26 00:44:45 4720z kernel: [242621.636509]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:45 4720z kernel: [242621.636526]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.636596]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.636658]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.636829]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:45 4720z kernel: [242621.636899]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.636978]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.637041]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.637104]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.637197]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.637367]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.637398]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:45 4720z kernel: [242621.637464]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.637516]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.637572]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.637700]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:45 4720z kernel: [242621.637746]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.637789]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.637800]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:45 4720z kernel: [242621.637810]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.637821]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:45 4720z kernel: [242621.637831]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:45 4720z kernel: [242621.637838] ---[ end trace b7ca82141b65d0d6 ]---
>Oct 26 00:44:45 4720z kernel: [242621.637847] ------------[ cut here ]------------
>Oct 26 00:44:45 4720z kernel: [242621.637907] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:45 4720z kernel: [242621.637913] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:45 4720z kernel: [242621.637917] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:45 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:45 4720z kernel: [242621.638261] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:45 4720z kernel: [242621.638267] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:45 4720z kernel: [242621.638272]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:45 4720z kernel: [242621.638288]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:45 4720z kernel: [242621.638305]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:45 4720z kernel: [242621.638322] Call Trace:
>Oct 26 00:44:45 4720z kernel: [242621.638335]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:45 4720z kernel: [242621.638355]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.638426]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.638488]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.638498]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:45 4720z kernel: [242621.638564]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.638643]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.638706]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.638780]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.638873]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:45 4720z kernel: [242621.638938]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.638968]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:45 4720z kernel: [242621.639034]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.639085]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.639142]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.639170]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:45 4720z kernel: [242621.639215]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.639258]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:45 4720z kernel: [242621.639268]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:45 4720z kernel: [242621.639278]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:45 4720z kernel: [242621.639288]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:45 4720z kernel: [242621.639298]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:45 4720z kernel: [242621.639304] ---[ end trace b7ca82141b65d0d7 ]---
>Oct 26 00:44:47 4720z kernel: [242622.679688] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242622.679752] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:47 4720z kernel: [242622.679756] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:47 4720z kernel: [242622.679758] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242622.679869] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242622.679872] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242622.679875]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:47 4720z kernel: [242622.679883]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:47 4720z kernel: [242622.679891]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:47 4720z kernel: [242622.679899] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242622.679909]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242622.679918]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.679951]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.679980]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.679985]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242622.680016]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680079]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680109]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680138]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680167]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680198]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680228]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680257]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680303]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680339]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.680354]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242622.680386]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.680410]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.680437]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.680452]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242622.680473]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.680493]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.680498]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242622.680503]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.680509]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242622.680514]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242622.680518] ---[ end trace b7ca82141b65d0d8 ]---
>Oct 26 00:44:47 4720z kernel: [242622.680575] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242622.680604] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:47 4720z kernel: [242622.680607] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:47 4720z kernel: [242622.680609] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242622.680713] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242622.680716] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242622.680718]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:47 4720z kernel: [242622.680726]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:47 4720z kernel: [242622.680734]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:47 4720z kernel: [242622.680741] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242622.680748]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242622.680756]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.680789]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680819]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680823]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242622.680854]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680890]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680919]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680948]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.680978]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.681007]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.681036]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.681079]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.681109]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.681123]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242622.681154]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.681178]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.681204]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.681217]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242622.681237]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.681257]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.681262]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242622.681266]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.681271]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242622.681276]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242622.681279] ---[ end trace b7ca82141b65d0d9 ]---
>Oct 26 00:44:47 4720z kernel: [242622.744077] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242622.744175] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:47 4720z kernel: [242622.744182] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:47 4720z kernel: [242622.744187] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242622.744413] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242622.744419] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242622.744425]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:47 4720z kernel: [242622.744442]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:47 4720z kernel: [242622.744458]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:47 4720z kernel: [242622.744475] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242622.744492]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242622.744509]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.744581]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.744643]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.744653]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242622.744720]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.744811]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.744881]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.744945]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.745009]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.745072]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.745135]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.745228]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.745296]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.745327]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242622.745393]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.745444]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.745501]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.745530]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242622.745575]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.745618]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.745629]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242622.745639]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.745650]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242622.745666]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242622.745673] ---[ end trace b7ca82141b65d0da ]---
>Oct 26 00:44:47 4720z kernel: [242622.808078] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242622.808138] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:47 4720z kernel: [242622.808141] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:47 4720z kernel: [242622.808143] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242622.808251] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242622.808254] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242622.808257]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:47 4720z kernel: [242622.808265]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:47 4720z kernel: [242622.808272]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:47 4720z kernel: [242622.808280] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242622.808290]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242622.808298]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.808331]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808359]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808364]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242622.808394]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808430]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808459]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808488]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808531]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808564]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.808579]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242622.808610]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.808634]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.808660]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.808674]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242622.808695]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.808715]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.808720]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242622.808725]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.808730]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242622.808735]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242622.808738] ---[ end trace b7ca82141b65d0db ]---
>Oct 26 00:44:47 4720z kernel: [242622.808742] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242622.808770] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:47 4720z kernel: [242622.808773] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:47 4720z kernel: [242622.808775] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242622.808876] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242622.808878] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242622.808880]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:47 4720z kernel: [242622.808888]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:47 4720z kernel: [242622.808895]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:47 4720z kernel: [242622.808903] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242622.808908]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242622.808915]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.808947]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808976]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.808980]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242622.809011]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.809047]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.809076]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.809105]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.809148]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242622.809177]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.809191]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242622.809221]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.809245]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.809271]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.809283]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242622.809304]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.809325]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242622.809329]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242622.809334]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242622.809338]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242622.809342]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242622.809345] ---[ end trace b7ca82141b65d0dc ]---
>Oct 26 00:44:47 4720z kernel: [242623.040420] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242623.040488] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:47 4720z kernel: [242623.040492] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:47 4720z kernel: [242623.040494] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242623.040603] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242623.040605] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242623.040609]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:47 4720z kernel: [242623.040617]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:47 4720z kernel: [242623.040624]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:47 4720z kernel: [242623.040632] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242623.040643]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242623.040652]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.040686]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.040715]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.040720]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242623.040751]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.040788]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.040924]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.040955]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.040995]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041026]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041057]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041086]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041132]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041167]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.041182]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242623.041214]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.041238]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.041265]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.041279]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242623.041300]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.041321]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.041326]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242623.041331]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.041336]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242623.041342]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242623.041346] ---[ end trace b7ca82141b65d0dd ]---
>Oct 26 00:44:47 4720z kernel: [242623.041405] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242623.041435] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:47 4720z kernel: [242623.041438] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:47 4720z kernel: [242623.041440] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242623.041655] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242623.041657] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242623.041660]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:47 4720z kernel: [242623.041668]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:47 4720z kernel: [242623.041675]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:47 4720z kernel: [242623.041683] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242623.041691]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242623.041703]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.041736]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041765]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041770]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242623.041801]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041838]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041867]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041896]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041926]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.041955]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.042079]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.042123]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.042158]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.042172]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242623.042204]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.042228]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.042256]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.042270]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242623.042292]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.042312]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.042317]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242623.042322]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.042327]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242623.042333]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242623.042337] ---[ end trace b7ca82141b65d0de ]---
>Oct 26 00:44:47 4720z kernel: [242623.104063] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242623.104162] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:47 4720z kernel: [242623.104270] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:47 4720z kernel: [242623.104276] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242623.104502] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242623.104508] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242623.104514]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:47 4720z kernel: [242623.104531]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:47 4720z kernel: [242623.104548]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:47 4720z kernel: [242623.104565] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242623.104583]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242623.104698]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.104770]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.104833]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.104842]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242623.104909]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105000]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105063]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105223]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105286]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105350]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105412]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105506]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.105669]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.105699]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242623.105766]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.105817]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.105874]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.105903]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242623.105948]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.106105]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.106117]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242623.106127]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.106138]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242623.106148]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242623.106156] ---[ end trace b7ca82141b65d0df ]---
>Oct 26 00:44:47 4720z kernel: [242623.168095] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242623.168190] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:47 4720z kernel: [242623.168197] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:47 4720z kernel: [242623.168202] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242623.168433] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242623.168440] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242623.168446]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:47 4720z kernel: [242623.168463]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:47 4720z kernel: [242623.168480]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:47 4720z kernel: [242623.168497] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242623.168515]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242623.168536]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.168608]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.168673]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.168683]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242623.168751]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.168830]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.168894]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.168958]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.169054]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.169126]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.169157]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242623.169224]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.169276]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.169334]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.169364]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242623.169410]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.169454]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.169466]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242623.169475]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.169486]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242623.169497]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242623.169504] ---[ end trace b7ca82141b65d0e0 ]---
>Oct 26 00:44:47 4720z kernel: [242623.169512] ------------[ cut here ]------------
>Oct 26 00:44:47 4720z kernel: [242623.169574] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:47 4720z kernel: [242623.169580] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:47 4720z kernel: [242623.169585] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:47 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:47 4720z kernel: [242623.169805] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:47 4720z kernel: [242623.169811] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:47 4720z kernel: [242623.169816]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:47 4720z kernel: [242623.169832]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:47 4720z kernel: [242623.169849]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:47 4720z kernel: [242623.169865] Call Trace:
>Oct 26 00:44:47 4720z kernel: [242623.169878]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:47 4720z kernel: [242623.169893]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.169963]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.170025]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.170035]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:47 4720z kernel: [242623.170101]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.170180]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.170242]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.170305]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.170398]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:47 4720z kernel: [242623.170465]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.170495]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:47 4720z kernel: [242623.170563]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.170613]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.170670]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.170699]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:47 4720z kernel: [242623.170745]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.170789]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:47 4720z kernel: [242623.170799]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:47 4720z kernel: [242623.170808]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:47 4720z kernel: [242623.170818]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:47 4720z kernel: [242623.170827]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:47 4720z kernel: [242623.170834] ---[ end trace b7ca82141b65d0e1 ]---
>Oct 26 00:44:48 4720z kernel: [242623.727851] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242623.727917] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:48 4720z kernel: [242623.727921] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242623.727923] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242623.728083] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242623.728086] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242623.728090]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:48 4720z kernel: [242623.728098]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:48 4720z kernel: [242623.728106]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:48 4720z kernel: [242623.728114] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242623.728125]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242623.728141]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.728178]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728208]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728215]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242623.728247]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728284]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728314]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728344]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728373]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728403]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728433]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728463]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728508]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.728544]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.728559]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242623.728590]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.728614]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.728641]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.728655]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242623.728676]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.728696]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.728701]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242623.728706]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.728712]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242623.728717]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242623.728720] ---[ end trace b7ca82141b65d0e2 ]---
>Oct 26 00:44:48 4720z kernel: [242623.728821] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242623.728850] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:48 4720z kernel: [242623.728852] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242623.728854] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242623.728958] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242623.728960] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242623.728963]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:48 4720z kernel: [242623.728970]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:48 4720z kernel: [242623.728978]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:48 4720z kernel: [242623.728986] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242623.728992]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242623.728999]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.729033]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729062]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729067]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242623.729098]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729134]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729164]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729193]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729223]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729270]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729300]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729343]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.729377]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.729392]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242623.729424]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.729448]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.729475]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.729489]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242623.729510]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.729531]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.729536]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242623.729541]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.729546]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242623.729551]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242623.729554] ---[ end trace b7ca82141b65d0e3 ]---
>Oct 26 00:44:48 4720z kernel: [242623.792064] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242623.792162] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:48 4720z kernel: [242623.792170] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242623.792280] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242623.792507] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242623.792513] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242623.792519]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:48 4720z kernel: [242623.792536]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:48 4720z kernel: [242623.792552]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:48 4720z kernel: [242623.792569] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242623.792587]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242623.792605]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.792676]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.792739]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.792749]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242623.792816]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.792907]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.793073]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.793137]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.793200]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.793264]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.793327]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.793420]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.793488]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.793519]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242623.793585]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.793637]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.793694]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.793723]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242623.793767]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.793811]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.793822]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242623.793832]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.793842]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242623.793853]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242623.793860] ---[ end trace b7ca82141b65d0e4 ]---
>Oct 26 00:44:48 4720z kernel: [242623.856074] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242623.856142] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:48 4720z kernel: [242623.856145] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:48 4720z kernel: [242623.856148] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242623.856260] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242623.856263] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242623.856266]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:48 4720z kernel: [242623.856274]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:48 4720z kernel: [242623.856282]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:48 4720z kernel: [242623.856290] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242623.856300]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242623.856310]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.856343]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.856372]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.856377]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242623.856407]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.856444]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.856473]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.856503]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.856547]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.856582]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.856597]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242623.856628]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.856653]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.856680]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.856693]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242623.856714]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.856734]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.856741]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242623.856745]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.856750]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242623.856756]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242623.856759] ---[ end trace b7ca82141b65d0e5 ]---
>Oct 26 00:44:48 4720z kernel: [242623.856764] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242623.856793] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:48 4720z kernel: [242623.856796] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:48 4720z kernel: [242623.856798] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242623.856900] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242623.856903] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242623.856905]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:48 4720z kernel: [242623.856913]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:48 4720z kernel: [242623.856920]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:48 4720z kernel: [242623.856928] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242623.856934]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242623.856941]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.856974]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.857003]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.857008]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242623.857039]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.857076]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.857105]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.857135]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.857178]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242623.857208]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.857222]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242623.857253]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.857277]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.857303]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.857316]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242623.857337]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.857357]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242623.857362]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242623.857366]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242623.857371]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242623.857375]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242623.857378] ---[ end trace b7ca82141b65d0e6 ]---
>Oct 26 00:44:48 4720z kernel: [242624.085263] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.085320] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.085324] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242624.085326] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.085434] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.085436] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.085439]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:48 4720z kernel: [242624.085447]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:48 4720z kernel: [242624.085455]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:48 4720z kernel: [242624.085463] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.085473]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.085481]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.085515]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085544]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085548]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.085579]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085616]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085646]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085675]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085728]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085758]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085788]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085817]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085861]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.085894]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.085908]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.085939]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.085964]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.085990]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086004]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.086024]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086045]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086050]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.086055]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.086060]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.086065]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.086069] ---[ end trace b7ca82141b65d0e7 ]---
>Oct 26 00:44:48 4720z kernel: [242624.086123] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.086151] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.086154] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242624.086156] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.086256] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.086259] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.086261]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:48 4720z kernel: [242624.086268]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:48 4720z kernel: [242624.086276]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:48 4720z kernel: [242624.086284] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.086289]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.086296]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.086328]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086357]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086361]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.086392]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086428]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086528]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086558]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086588]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086617]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086646]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086689]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.086719]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086733]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.086763]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086787]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086813]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086826]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.086847]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086867]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.086871]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.086876]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.086880]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.086885]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.086888] ---[ end trace b7ca82141b65d0e8 ]---
>Oct 26 00:44:48 4720z kernel: [242624.148098] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.148198] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.148218] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242624.148223] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.148462] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.148468] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.148473]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:48 4720z kernel: [242624.148491]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:48 4720z kernel: [242624.148510]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:48 4720z kernel: [242624.148527] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.148545]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.148564]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.148638]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.148701]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.148711]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.148778]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.148870]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.148933]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.148997]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.149060]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.149124]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.149187]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.149281]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.149349]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.149380]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.149447]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.149498]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.149556]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.149585]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.149630]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.149673]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.149685]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.149694]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.149705]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.149715]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.149723] ---[ end trace b7ca82141b65d0e9 ]---
>Oct 26 00:44:48 4720z kernel: [242624.212108] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.212207] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.212214] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:48 4720z kernel: [242624.212219] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.212451] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.212458] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.212464]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:48 4720z kernel: [242624.212481]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:48 4720z kernel: [242624.212498]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:48 4720z kernel: [242624.212515] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.212533]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.212551]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.212622]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.212685]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.212696]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.212762]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.212840]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.212903]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.212967]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.213061]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.213131]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.213161]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.213228]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.213279]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.213336]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.213364]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.213409]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.213453]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.213464]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.213473]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.213484]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.213495]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.213501] ---[ end trace b7ca82141b65d0ea ]---
>Oct 26 00:44:48 4720z kernel: [242624.213509] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.213570] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.213576] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:48 4720z kernel: [242624.213580] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.213800] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.213805] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.213810]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:48 4720z kernel: [242624.213827]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:48 4720z kernel: [242624.213843]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:48 4720z kernel: [242624.213859] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.213871]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.213885]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.213957]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.214019]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.214029]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.214095]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.214174]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.214238]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.214302]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.214395]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.214461]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.214491]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.214557]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.214608]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.214665]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.214693]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.214738]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.214782]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.214792]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.214802]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.214811]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.214821]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.214827] ---[ end trace b7ca82141b65d0eb ]---
>Oct 26 00:44:48 4720z kernel: [242624.442252] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.442317] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.442320] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242624.442322] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.442433] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.442436] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.442439]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:48 4720z kernel: [242624.442447]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:48 4720z kernel: [242624.442455]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:48 4720z kernel: [242624.442463] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.442473]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.442484]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.442519]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442548]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442553]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.442584]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442622]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442651]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442681]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442711]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442741]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442771]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442800]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442846]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.442881]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.442895]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.442927]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.442951]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.442978]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.442991]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.443012]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443032]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443038]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.443043]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.443048]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.443054]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.443057] ---[ end trace b7ca82141b65d0ec ]---
>Oct 26 00:44:48 4720z kernel: [242624.443114] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.443145] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.443148] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242624.443150] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.443255] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.443258] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.443260]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:48 4720z kernel: [242624.443267]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:48 4720z kernel: [242624.443275]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:48 4720z kernel: [242624.443283] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.443288]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.443297]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.443331]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443361]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443365]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.443396]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443433]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443462]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443492]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443521]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443551]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443580]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443623]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.443655]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443669]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.443700]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443724]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443750]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443763]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.443784]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443805]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.443810]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.443814]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.443819]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.443824]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.443827] ---[ end trace b7ca82141b65d0ed ]---
>Oct 26 00:44:48 4720z kernel: [242624.504096] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.504199] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.504207] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:48 4720z kernel: [242624.504211] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.504437] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.504444] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.504449]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:48 4720z kernel: [242624.504480]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:48 4720z kernel: [242624.504496]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:48 4720z kernel: [242624.504513] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.504531]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.504549]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.504622]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.504685]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.504695]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.504762]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.504854]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.504918]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.504981]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.505045]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.505109]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.505172]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.505265]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.505336]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.505367]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.505434]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.505485]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.505542]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.505571]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.505616]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.505660]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.505671]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.505681]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.505692]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.505703]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.505710] ---[ end trace b7ca82141b65d0ee ]---
>Oct 26 00:44:48 4720z kernel: [242624.568113] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.568210] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.568217] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:48 4720z kernel: [242624.568221] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.568451] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.568457] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.568463]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:48 4720z kernel: [242624.568480]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:48 4720z kernel: [242624.568497]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:48 4720z kernel: [242624.568514] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.568531]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.568549]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.568619]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.568681]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.568692]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.568757]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.568836]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.568900]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.568963]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.569056]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.569124]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.569155]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.569222]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.569273]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.569330]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.569358]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.569404]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.569447]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.569458]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.569468]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.569479]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.569490]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.569497] ---[ end trace b7ca82141b65d0ef ]---
>Oct 26 00:44:48 4720z kernel: [242624.569504] ------------[ cut here ]------------
>Oct 26 00:44:48 4720z kernel: [242624.569565] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:48 4720z kernel: [242624.569571] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:48 4720z kernel: [242624.569575] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:48 4720z kernel: [242624.569801] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:48 4720z kernel: [242624.569807] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:48 4720z kernel: [242624.569812]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:48 4720z kernel: [242624.569828]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:48 4720z kernel: [242624.569845]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:48 4720z kernel: [242624.569862] Call Trace:
>Oct 26 00:44:48 4720z kernel: [242624.569873]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:48 4720z kernel: [242624.569888]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.569958]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.570020]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.570030]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:48 4720z kernel: [242624.570097]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.570175]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.570238]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.570301]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.570397]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:48 4720z kernel: [242624.570463]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.570494]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:48 4720z kernel: [242624.570560]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.570611]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.570668]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.570695]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:48 4720z kernel: [242624.570741]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.570784]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:48 4720z kernel: [242624.570794]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:48 4720z kernel: [242624.570804]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:48 4720z kernel: [242624.570814]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:48 4720z kernel: [242624.570823]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:48 4720z kernel: [242624.570829] ---[ end trace b7ca82141b65d0f0 ]---
>Oct 26 00:44:49 4720z kernel: [242624.789494] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242624.789553] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:49 4720z kernel: [242624.789557] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242624.789559] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242624.789796] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242624.789799] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242624.789803]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:49 4720z kernel: [242624.789811]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:49 4720z kernel: [242624.789819]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:49 4720z kernel: [242624.789827] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242624.789838]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242624.789851]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.789886]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.789915]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.789920]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242624.789950]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.789987]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790016]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790045]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790074]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790103]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790133]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790162]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790208]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790248]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.790264]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242624.790296]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.790320]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.790347]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.790360]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242624.790382]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.790402]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.790407]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242624.790412]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.790417]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242624.790422]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242624.790426] ---[ end trace b7ca82141b65d0f1 ]---
>Oct 26 00:44:49 4720z kernel: [242624.790482] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242624.790510] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:49 4720z kernel: [242624.790513] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242624.790515] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242624.790617] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242624.790619] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242624.790622]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:49 4720z kernel: [242624.790629]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:49 4720z kernel: [242624.790637]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:49 4720z kernel: [242624.790644] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242624.790650]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242624.790657]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.790690]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790719]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790723]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242624.790754]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790790]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790819]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790848]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790878]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790907]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790936]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.790979]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.791008]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.791022]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242624.791052]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.791075]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.791101]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.791114]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242624.791135]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.791155]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.791159]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242624.791164]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.791169]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242624.791173]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242624.791176] ---[ end trace b7ca82141b65d0f2 ]---
>Oct 26 00:44:49 4720z kernel: [242624.852059] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242624.852157] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:49 4720z kernel: [242624.852164] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242624.852169] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242624.852394] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242624.852400] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242624.852406]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:49 4720z kernel: [242624.852423]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:49 4720z kernel: [242624.852440]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:49 4720z kernel: [242624.852457] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242624.852473]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242624.852491]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.852562]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.852625]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.852635]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242624.852701]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.852792]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.852856]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.852919]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.852983]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.853046]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.853109]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.853202]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.853270]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.853310]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242624.853376]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.853427]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.853484]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.853512]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242624.853557]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.853601]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.853612]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242624.853622]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.853632]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242624.853642]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242624.853650] ---[ end trace b7ca82141b65d0f3 ]---
>Oct 26 00:44:49 4720z kernel: [242624.912104] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242624.912203] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:49 4720z kernel: [242624.912210] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:49 4720z kernel: [242624.912214] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242624.912445] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242624.912452] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242624.912458]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:49 4720z kernel: [242624.912475]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:49 4720z kernel: [242624.912492]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:49 4720z kernel: [242624.912509] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242624.912527]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242624.912546]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.912617]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.912680]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.912690]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242624.912756]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.912835]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.912900]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.912965]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.913060]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.913130]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.913161]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242624.913228]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.913279]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.913336]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.913365]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242624.913411]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.913454]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.913466]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242624.913475]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.913487]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242624.913498]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242624.913505] ---[ end trace b7ca82141b65d0f4 ]---
>Oct 26 00:44:49 4720z kernel: [242624.913514] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242624.913576] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:49 4720z kernel: [242624.913582] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:49 4720z kernel: [242624.913586] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242624.913809] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242624.913814] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242624.913819]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:49 4720z kernel: [242624.913835]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:49 4720z kernel: [242624.913852]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:49 4720z kernel: [242624.913869] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242624.913881]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242624.913896]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.913967]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.914030]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.914040]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242624.914108]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.914188]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.914253]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.914317]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.914411]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242624.914478]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.914509]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242624.914576]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.914628]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.914685]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.914714]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242624.914760]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.914803]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242624.914814]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242624.914824]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242624.914835]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242624.914845]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242624.914851] ---[ end trace b7ca82141b65d0f5 ]---
>Oct 26 00:44:49 4720z kernel: [242625.158900] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.158971] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.158976] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242625.158978] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.159089] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.159092] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.159095]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:49 4720z kernel: [242625.159103]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:49 4720z kernel: [242625.159111]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:49 4720z kernel: [242625.159119] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.159129]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.159140]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.159175]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159205]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159210]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.159242]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159281]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159311]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159341]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159370]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159401]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159462]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159492]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159539]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.159578]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.159595]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.159627]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.159652]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.159749]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.159767]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.159789]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.159809]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.159815]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.159820]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.159826]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.159831]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.159835] ---[ end trace b7ca82141b65d0f6 ]---
>Oct 26 00:44:49 4720z kernel: [242625.159893] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.159923] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.159926] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242625.159928] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.160061] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.160064] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.160066]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:49 4720z kernel: [242625.160074]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:49 4720z kernel: [242625.160113]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:49 4720z kernel: [242625.160140] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.160149]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.160161]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.160194]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160223]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160228]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.160259]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160295]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160324]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160353]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160395]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160431]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160463]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160507]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.160538]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.160556]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.160589]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.160614]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.160641]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.160654]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.160675]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.160695]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.160700]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.160704]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.160709]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.160714]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.160717] ---[ end trace b7ca82141b65d0f7 ]---
>Oct 26 00:44:49 4720z kernel: [242625.224082] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.224180] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.224193] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242625.224198] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.224426] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.224432] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.224438]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:49 4720z kernel: [242625.224455]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:49 4720z kernel: [242625.224472]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:49 4720z kernel: [242625.224489] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.224507]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.224524]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.224596]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.224658]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.224668]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.224735]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.224826]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.224889]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.224952]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.225016]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.225079]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.225146]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.225242]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.225310]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.225340]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.225407]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.225458]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.225515]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.225543]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.225588]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.225632]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.225643]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.225652]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.225663]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.225673]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.225680] ---[ end trace b7ca82141b65d0f8 ]---
>Oct 26 00:44:49 4720z kernel: [242625.288125] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.288218] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.288225] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:49 4720z kernel: [242625.288230] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.288482] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.288488] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.288494]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:49 4720z kernel: [242625.288511]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:49 4720z kernel: [242625.288528]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:49 4720z kernel: [242625.288545] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.288562]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.288579]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.288649]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.288711]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.288721]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.288787]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.288864]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.288927]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.288990]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.289083]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.289151]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.289187]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.289255]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.289307]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.289364]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.289392]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.289438]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.289481]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.289492]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.289502]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.289513]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.289524]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.289531] ---[ end trace b7ca82141b65d0f9 ]---
>Oct 26 00:44:49 4720z kernel: [242625.289538] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.289598] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.289604] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:49 4720z kernel: [242625.289608] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.289834] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.289839] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.289844]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:49 4720z kernel: [242625.289860]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:49 4720z kernel: [242625.289876]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:49 4720z kernel: [242625.289893] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.289904]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.289918]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.289988]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.290051]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.290061]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.290127]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.290205]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.290268]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.290331]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.290424]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.290488]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.290517]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.290583]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.290633]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.290690]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.290717]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.290762]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.290806]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.290816]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.290825]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.290835]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.290844]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.290850] ---[ end trace b7ca82141b65d0fa ]---
>Oct 26 00:44:49 4720z kernel: [242625.574301] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.574379] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.574383] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242625.574385] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.574497] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.574500] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.574503]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:49 4720z kernel: [242625.574511]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:49 4720z kernel: [242625.574519]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:49 4720z kernel: [242625.574527] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.574537]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.574548]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.574582]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574612]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574616]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.574647]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574684]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574713]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574742]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574771]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574801]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574830]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574859]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574902]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.574936]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.574950]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.574981]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575005]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575032]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575045]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.575066]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575086]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575092]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.575096]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.575102]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.575107]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.575111] ---[ end trace b7ca82141b65d0fb ]---
>Oct 26 00:44:49 4720z kernel: [242625.575166] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.575194] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.575197] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242625.575198] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.575299] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.575301] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.575304]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:49 4720z kernel: [242625.575311]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:49 4720z kernel: [242625.575319]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:49 4720z kernel: [242625.575326] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.575331]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.575338]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.575371]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575399]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575404]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.575434]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575471]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575500]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575529]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575558]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575587]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575616]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575665]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.575696]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575709]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.575740]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575789]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575815]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575828]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.575848]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575868]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.575873]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.575877]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.575882]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.575886]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.575889] ---[ end trace b7ca82141b65d0fc ]---
>Oct 26 00:44:49 4720z kernel: [242625.636086] ------------[ cut here ]------------
>Oct 26 00:44:49 4720z kernel: [242625.636183] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:49 4720z kernel: [242625.636191] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:49 4720z kernel: [242625.636195] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:49 4720z kernel: [242625.636433] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:49 4720z kernel: [242625.636439] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:49 4720z kernel: [242625.636445]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:49 4720z kernel: [242625.636462]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:49 4720z kernel: [242625.636479]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:49 4720z kernel: [242625.636496] Call Trace:
>Oct 26 00:44:49 4720z kernel: [242625.636514]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:49 4720z kernel: [242625.636533]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.636605]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.636679]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.636689]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:49 4720z kernel: [242625.636756]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.636846]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.636909]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.636973]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.637036]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.637099]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.637162]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.637255]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:49 4720z kernel: [242625.637323]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.637353]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:49 4720z kernel: [242625.637420]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.637471]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.637528]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.637556]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:49 4720z kernel: [242625.637601]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.637644]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:49 4720z kernel: [242625.637656]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:49 4720z kernel: [242625.637665]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:49 4720z kernel: [242625.637676]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:49 4720z kernel: [242625.637686]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:49 4720z kernel: [242625.637693] ---[ end trace b7ca82141b65d0fd ]---
>Oct 26 00:44:50 4720z kernel: [242625.700086] ------------[ cut here ]------------
>Oct 26 00:44:50 4720z kernel: [242625.700170] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:50 4720z kernel: [242625.700177] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:50 4720z kernel: [242625.700181] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:50 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:50 4720z kernel: [242625.700405] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:50 4720z kernel: [242625.700411] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:50 4720z kernel: [242625.700417]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:50 4720z kernel: [242625.700434]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:50 4720z kernel: [242625.700450]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:50 4720z kernel: [242625.700467] Call Trace:
>Oct 26 00:44:50 4720z kernel: [242625.700483]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:50 4720z kernel: [242625.700500]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.700569]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.700630]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.700640]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:50 4720z kernel: [242625.700705]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.700782]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.700845]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.700909]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.701001]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.701068]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.701098]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:50 4720z kernel: [242625.701164]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.701215]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.701272]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.701300]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:50 4720z kernel: [242625.701345]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.701388]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.701399]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:50 4720z kernel: [242625.701408]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.701419]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:50 4720z kernel: [242625.701429]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:50 4720z kernel: [242625.701435] ---[ end trace b7ca82141b65d0fe ]---
>Oct 26 00:44:50 4720z kernel: [242625.701442] ------------[ cut here ]------------
>Oct 26 00:44:50 4720z kernel: [242625.701502] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:50 4720z kernel: [242625.701508] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:50 4720z kernel: [242625.701512] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:50 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:50 4720z kernel: [242625.701775] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:50 4720z kernel: [242625.701781] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:50 4720z kernel: [242625.701786]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:50 4720z kernel: [242625.701803]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:50 4720z kernel: [242625.701819]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:50 4720z kernel: [242625.701836] Call Trace:
>Oct 26 00:44:50 4720z kernel: [242625.701849]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:50 4720z kernel: [242625.701867]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.701939]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.702002]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.702012]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:50 4720z kernel: [242625.702091]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.702171]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.702234]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.702297]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.702391]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.702456]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.702485]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:50 4720z kernel: [242625.702552]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.702603]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.702659]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.702687]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:50 4720z kernel: [242625.702732]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.702888]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.702899]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:50 4720z kernel: [242625.702909]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.702919]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:50 4720z kernel: [242625.702929]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:50 4720z kernel: [242625.702936] ---[ end trace b7ca82141b65d0ff ]---
>Oct 26 00:44:50 4720z kernel: [242625.985139] ------------[ cut here ]------------
>Oct 26 00:44:50 4720z kernel: [242625.985214] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:50 4720z kernel: [242625.985218] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:50 4720z kernel: [242625.985220] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:50 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:50 4720z kernel: [242625.985330] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:50 4720z kernel: [242625.985333] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:50 4720z kernel: [242625.985335]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:44:50 4720z kernel: [242625.985344]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:50 4720z kernel: [242625.985351]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:44:50 4720z kernel: [242625.985360] Call Trace:
>Oct 26 00:44:50 4720z kernel: [242625.985369]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:50 4720z kernel: [242625.985378]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.985411]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985444]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985449]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:50 4720z kernel: [242625.985480]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985517]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985546]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985575]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985605]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985634]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985663]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985692]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985736]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.985770]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.985784]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:50 4720z kernel: [242625.985815]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.985839]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.985865]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.985879]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:50 4720z kernel: [242625.985900]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.985920]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.985925]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:50 4720z kernel: [242625.985929]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.985935]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:50 4720z kernel: [242625.985940]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:50 4720z kernel: [242625.985943] ---[ end trace b7ca82141b65d100 ]---
>Oct 26 00:44:50 4720z kernel: [242625.985998] ------------[ cut here ]------------
>Oct 26 00:44:50 4720z kernel: [242625.986026] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:44:50 4720z kernel: [242625.986029] PLL state assertion failure (expected on, current off)
>Oct 26 00:44:50 4720z kernel: [242625.986031] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:50 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:50 4720z kernel: [242625.986132] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:50 4720z kernel: [242625.986134] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:50 4720z kernel: [242625.986137]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:44:50 4720z kernel: [242625.986144]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:44:50 4720z kernel: [242625.986152]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:44:50 4720z kernel: [242625.986159] Call Trace:
>Oct 26 00:44:50 4720z kernel: [242625.986164]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:50 4720z kernel: [242625.986171]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.986204]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986232]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986237]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:50 4720z kernel: [242625.986268]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986304]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986333]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986362]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986391]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986420]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986456]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986499]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:50 4720z kernel: [242625.986529]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.986542]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:50 4720z kernel: [242625.986573]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.986596]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.986622]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.986635]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:50 4720z kernel: [242625.986655]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.986675]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:50 4720z kernel: [242625.986680]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:50 4720z kernel: [242625.986685]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:50 4720z kernel: [242625.986689]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:50 4720z kernel: [242625.986693]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:50 4720z kernel: [242625.986696] ---[ end trace b7ca82141b65d101 ]---
>Oct 26 00:44:50 4720z kernel: [242626.048072] ------------[ cut here ]------------
>Oct 26 00:44:50 4720z kernel: [242626.048137] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:44:50 4720z kernel: [242626.048142] pipe A assertion failure (expected on, current off)
>Oct 26 00:44:50 4720z kernel: [242626.048144] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:50 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:50 4720z kernel: [242626.048253] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:50 4720z kernel: [242626.048256] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:50 4720z kernel: [242626.048259]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:44:50 4720z kernel: [242626.048267]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:44:50 4720z kernel: [242626.048275]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:44:50 4720z kernel: [242626.048283] Call Trace:
>Oct 26 00:44:50 4720z kernel: [242626.048293]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:50 4720z kernel: [242626.048302]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:50 4720z kernel: [242626.048336]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048365]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048370]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:50 4720z kernel: [242626.048401]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048444]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048475]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048505]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048536]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048566]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048595]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048640]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.048677]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.048692]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:50 4720z kernel: [242626.048723]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.048748]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.048775]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.048789]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:50 4720z kernel: [242626.048810]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.048831]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.048836]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:50 4720z kernel: [242626.048841]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:50 4720z kernel: [242626.048847]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:50 4720z kernel: [242626.048852]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:50 4720z kernel: [242626.048856] ---[ end trace b7ca82141b65d102 ]---
>Oct 26 00:44:50 4720z kernel: [242626.112097] ------------[ cut here ]------------
>Oct 26 00:44:50 4720z kernel: [242626.112190] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:44:50 4720z kernel: [242626.112197] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:44:50 4720z kernel: [242626.112202] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:50 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:50 4720z kernel: [242626.112428] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:50 4720z kernel: [242626.112434] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:50 4720z kernel: [242626.112440]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:44:50 4720z kernel: [242626.112457]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:44:50 4720z kernel: [242626.112474]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:44:50 4720z kernel: [242626.112491] Call Trace:
>Oct 26 00:44:50 4720z kernel: [242626.112507]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:50 4720z kernel: [242626.112524]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:50 4720z kernel: [242626.112594]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.112656]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.112666]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:50 4720z kernel: [242626.112731]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.112809]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.112872]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.112935]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.113028]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.113097]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.113127]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:50 4720z kernel: [242626.113194]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.113245]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.113301]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.113330]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:50 4720z kernel: [242626.113375]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.113418]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.113429]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:50 4720z kernel: [242626.113439]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:50 4720z kernel: [242626.113450]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:50 4720z kernel: [242626.113460]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:50 4720z kernel: [242626.113467] ---[ end trace b7ca82141b65d103 ]---
>Oct 26 00:44:50 4720z kernel: [242626.113474] ------------[ cut here ]------------
>Oct 26 00:44:50 4720z kernel: [242626.113534] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:44:50 4720z kernel: [242626.113540] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:44:50 4720z kernel: [242626.113544] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:44:50 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:44:50 4720z kernel: [242626.113762] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:44:50 4720z kernel: [242626.113768] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:44:50 4720z kernel: [242626.113772]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:44:50 4720z kernel: [242626.113789]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:44:50 4720z kernel: [242626.113805]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:44:50 4720z kernel: [242626.113822] Call Trace:
>Oct 26 00:44:50 4720z kernel: [242626.113833]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:44:50 4720z kernel: [242626.113847]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:44:50 4720z kernel: [242626.113917]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.113979]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.113989]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:44:50 4720z kernel: [242626.114055]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.114134]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.114197]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.114259]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.114352]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:44:50 4720z kernel: [242626.114416]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.114446]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:44:50 4720z kernel: [242626.114512]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.114562]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.114618]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.114646]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:44:50 4720z kernel: [242626.114691]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.114734]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:44:50 4720z kernel: [242626.114744]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:44:50 4720z kernel: [242626.114754]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:44:50 4720z kernel: [242626.114764]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:44:50 4720z kernel: [242626.114773]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:44:50 4720z kernel: [242626.114779] ---[ end trace b7ca82141b65d104 ]---
>Oct 26 00:45:25 4720z kernel: [242661.370244] ------------[ cut here ]------------
>Oct 26 00:45:25 4720z kernel: [242661.370308] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:25 4720z kernel: [242661.370312] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:25 4720z kernel: [242661.370314] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:25 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:25 4720z kernel: [242661.370425] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:25 4720z kernel: [242661.370428] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:25 4720z kernel: [242661.370431]  00000000 00000000 f2255b30 c1683110 f89adb0c f2255b60 c1059c54 f89afb04
>Oct 26 00:45:25 4720z kernel: [242661.370439]  f2255b8c 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:25 4720z kernel: [242661.370447]  00000000 f2255b78 c1059d13 00000009 f2255b70 f89afb04 f2255b8c f2255b9c
>Oct 26 00:45:25 4720z kernel: [242661.370455] Call Trace:
>Oct 26 00:45:25 4720z kernel: [242661.370465]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:25 4720z kernel: [242661.370476]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.370510]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370540]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370545]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:25 4720z kernel: [242661.370577]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370616]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370646]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370676]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370707]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370738]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370768]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370798]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370844]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.370881]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.370896]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:45:25 4720z kernel: [242661.370927]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.370953]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.370980]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.370994]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:45:25 4720z kernel: [242661.371016]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371037]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371043]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:25 4720z kernel: [242661.371047]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.371053]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:45:25 4720z kernel: [242661.371058]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:25 4720z kernel: [242661.371062] ---[ end trace b7ca82141b65d105 ]---
>Oct 26 00:45:25 4720z kernel: [242661.371118] ------------[ cut here ]------------
>Oct 26 00:45:25 4720z kernel: [242661.371147] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:25 4720z kernel: [242661.371150] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:25 4720z kernel: [242661.371152] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:25 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:25 4720z kernel: [242661.371257] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:25 4720z kernel: [242661.371260] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:25 4720z kernel: [242661.371262]  00000000 00000000 f2255b34 c1683110 f89adb0c f2255b64 c1059c54 f89afb04
>Oct 26 00:45:25 4720z kernel: [242661.371270]  f2255b90 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:25 4720z kernel: [242661.371277]  00000000 f2255b7c c1059d13 00000009 f2255b74 f89afb04 f2255b90 f2255ba0
>Oct 26 00:45:25 4720z kernel: [242661.371285] Call Trace:
>Oct 26 00:45:25 4720z kernel: [242661.371291]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:25 4720z kernel: [242661.371299]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.371333]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371362]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371367]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:25 4720z kernel: [242661.371399]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371436]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371465]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371496]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371526]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371556]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371586]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371631]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.371664]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371678]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:45:25 4720z kernel: [242661.371710]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371734]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371761]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371775]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:45:25 4720z kernel: [242661.371796]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371817]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.371822]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:25 4720z kernel: [242661.371826]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.371831]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:45:25 4720z kernel: [242661.371836]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:25 4720z kernel: [242661.371839] ---[ end trace b7ca82141b65d106 ]---
>Oct 26 00:45:25 4720z kernel: [242661.428109] ------------[ cut here ]------------
>Oct 26 00:45:25 4720z kernel: [242661.428211] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:45:25 4720z kernel: [242661.428219] pipe A assertion failure (expected on, current off)
>Oct 26 00:45:25 4720z kernel: [242661.428224] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:25 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:25 4720z kernel: [242661.428455] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:25 4720z kernel: [242661.428461] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:25 4720z kernel: [242661.428467]  00000000 00000000 f2255b1c c1683110 f89adb0c f2255b4c c1059c54 f89afcfc
>Oct 26 00:45:25 4720z kernel: [242661.428485]  f2255b78 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:45:25 4720z kernel: [242661.428501]  00000000 f2255b64 c1059d13 00000009 f2255b5c f89afcfc f2255b78 f2255ba0
>Oct 26 00:45:25 4720z kernel: [242661.428518] Call Trace:
>Oct 26 00:45:25 4720z kernel: [242661.428536]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:25 4720z kernel: [242661.428555]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.428628]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.428692]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.428702]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:25 4720z kernel: [242661.428770]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.428863]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.428928]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.428994]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.429060]  [<f8965ae3>] ? intel_framebuffer_create_for_mode.constprop.57+0xa3/0xb0 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.429124]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.429189]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.429284]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.429356]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.429387]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:45:25 4720z kernel: [242661.429455]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.429508]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.429567]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.429597]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:45:25 4720z kernel: [242661.429643]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.429688]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.429699]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:25 4720z kernel: [242661.429709]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.429719]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:45:25 4720z kernel: [242661.429730]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:25 4720z kernel: [242661.429737] ---[ end trace b7ca82141b65d107 ]---
>Oct 26 00:45:25 4720z kernel: [242661.492236] ------------[ cut here ]------------
>Oct 26 00:45:25 4720z kernel: [242661.492336] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:25 4720z kernel: [242661.492343] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:25 4720z kernel: [242661.492348] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:25 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:25 4720z kernel: [242661.492485] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:25 4720z kernel: [242661.492488] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:25 4720z kernel: [242661.492491]  00000000 00000000 f2255b94 c1683110 f89adb0c f2255bc4 c1059c54 f89adfb8
>Oct 26 00:45:25 4720z kernel: [242661.492499]  f2255bf0 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:45:25 4720z kernel: [242661.492506]  f7015000 f2255bdc c1059d13 00000009 f2255bd4 f89adfb8 f2255bf0 f2255c1c
>Oct 26 00:45:25 4720z kernel: [242661.492514] Call Trace:
>Oct 26 00:45:25 4720z kernel: [242661.492524]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:25 4720z kernel: [242661.492533]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.492565]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.492594]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.492599]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:25 4720z kernel: [242661.492629]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.492665]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.492694]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.492723]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.492767]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.492801]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.492815]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:45:25 4720z kernel: [242661.492846]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.492871]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.492897]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.492910]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:45:25 4720z kernel: [242661.492931]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.492951]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.492957]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:25 4720z kernel: [242661.492961]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.492967]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:45:25 4720z kernel: [242661.492972]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:25 4720z kernel: [242661.492975] ---[ end trace b7ca82141b65d108 ]---
>Oct 26 00:45:25 4720z kernel: [242661.492979] ------------[ cut here ]------------
>Oct 26 00:45:25 4720z kernel: [242661.493007] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:25 4720z kernel: [242661.493010] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:25 4720z kernel: [242661.493012] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:25 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:25 4720z kernel: [242661.493113] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:25 4720z kernel: [242661.493115] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:25 4720z kernel: [242661.493117]  00000000 00000000 f2255964 c1683110 f89adb0c f2255994 c1059c54 f89af608
>Oct 26 00:45:25 4720z kernel: [242661.493125]  f22559c0 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:45:25 4720z kernel: [242661.493132]  00000000 f22559ac c1059d13 00000009 f22559a4 f89af608 f22559c0 f2255c1c
>Oct 26 00:45:25 4720z kernel: [242661.493140] Call Trace:
>Oct 26 00:45:25 4720z kernel: [242661.493145]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:25 4720z kernel: [242661.493152]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.493184]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.493213]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.493231]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:25 4720z kernel: [242661.493262]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.493298]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.493327]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.493357]  [<f8965d0d>] intel_get_load_detect_pipe+0x21d/0x300 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.493400]  [<f898b195>] intel_tv_detect+0x125/0x230 [i915]
>Oct 26 00:45:25 4720z kernel: [242661.493430]  [<f8816f60>] ? drm_do_probe_ddc_edid+0xf0/0x110 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.493443]  [<f875a0c0>] drm_helper_probe_single_connector_modes+0x1d0/0x360 [drm_kms_helper]
>Oct 26 00:45:25 4720z kernel: [242661.493474]  [<f880f05c>] ? drm_mode_object_find+0x6c/0xb0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.493497]  [<f8812531>] drm_mode_getconnector+0x371/0x3a0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.493524]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.493537]  [<c106b103>] ? __set_current_blocked+0x33/0x80
>Oct 26 00:45:25 4720z kernel: [242661.493557]  [<f88121c0>] ? drm_mode_getcrtc+0xc0/0xc0 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.493578]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:25 4720z kernel: [242661.493582]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:25 4720z kernel: [242661.493587]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:25 4720z kernel: [242661.493591]  [<c1010c2f>] ? sys_sigreturn+0x9f/0xb0
>Oct 26 00:45:25 4720z kernel: [242661.493595]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:25 4720z kernel: [242661.493598] ---[ end trace b7ca82141b65d109 ]---
>Oct 26 00:45:26 4720z kernel: [242661.759247] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.759320] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.759324] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:26 4720z kernel: [242661.759326] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.759437] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.759440] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.759444]  00000000 00000000 f2255c90 c1683110 f89adb0c f2255cc0 c1059c54 f89afb04
>Oct 26 00:45:26 4720z kernel: [242661.759452]  f2255cec 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:26 4720z kernel: [242661.759460]  00000000 f2255cd8 c1059d13 00000009 f2255cd0 f89afb04 f2255cec f2255cfc
>Oct 26 00:45:26 4720z kernel: [242661.759468] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.759478]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.759490]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.759524]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759555]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759559]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.759591]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759628]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759658]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759687]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759717]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759745]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.759775]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759804]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.759830]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.759852]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.759880]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.759910]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.759930]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.759935]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.759940]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.759945]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.759949] ---[ end trace b7ca82141b65d10a ]---
>Oct 26 00:45:26 4720z kernel: [242661.760049] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.760082] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.760085] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:26 4720z kernel: [242661.760087] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.760192] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.760195] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.760197]  00000000 00000000 f2255c94 c1683110 f89adb0c f2255cc4 c1059c54 f89afb04
>Oct 26 00:45:26 4720z kernel: [242661.760205]  f2255cf0 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:26 4720z kernel: [242661.760212]  00000000 f2255cdc c1059d13 00000009 f2255cd4 f89afb04 f2255cf0 f2255d00
>Oct 26 00:45:26 4720z kernel: [242661.760220] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.760228]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.760236]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.760269]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760297]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760302]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.760332]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760369]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760398]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760427]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760449]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.760478]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760507]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.760533]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.760555]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.760583]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.760733]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.760755]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.760760]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.760765]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.760770]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.760774] ---[ end trace b7ca82141b65d10b ]---
>Oct 26 00:45:26 4720z kernel: [242661.820080] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.820179] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.820187] pipe A assertion failure (expected on, current off)
>Oct 26 00:45:26 4720z kernel: [242661.820191] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.820423] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.820430] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.820436]  00000000 00000000 f2255c7c c1683110 f89adb0c f2255cac c1059c54 f89afcfc
>Oct 26 00:45:26 4720z kernel: [242661.820453]  f2255cd8 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:45:26 4720z kernel: [242661.820470]  00000000 f2255cc4 c1059d13 00000009 f2255cbc f89afcfc f2255cd8 f2255d00
>Oct 26 00:45:26 4720z kernel: [242661.820487] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.820504]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.820522]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.820594]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.820658]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.820668]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.820736]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.820828]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.820891]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.820955]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.821006]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.821071]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.821135]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.821190]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.821239]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.821300]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.821364]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.821409]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.821420]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.821430]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.821440]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.821447] ---[ end trace b7ca82141b65d10c ]---
>Oct 26 00:45:26 4720z kernel: [242661.884140] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.884240] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.884248] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:26 4720z kernel: [242661.884252] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.884482] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.884489] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.884494]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:45:26 4720z kernel: [242661.884512]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:45:26 4720z kernel: [242661.884528]  f7015000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:45:26 4720z kernel: [242661.884545] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.884562]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.884579]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.884649]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.884711]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.884722]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.884787]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.884864]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.884927]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.884990]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.885049]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.885097]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.885157]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.885220]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.885264]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.885276]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.885285]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.885295]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.885302] ---[ end trace b7ca82141b65d10d ]---
>Oct 26 00:45:26 4720z kernel: [242661.885310] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.885370] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.885376] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:26 4720z kernel: [242661.885380] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.885600] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.885606] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.885610]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:45:26 4720z kernel: [242661.885627]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:45:26 4720z kernel: [242661.885643]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:45:26 4720z kernel: [242661.885660] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.885672]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.885689]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.885762]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.885826]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.885835]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.885904]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.885983]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.886046]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.886110]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.886166]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.886214]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.886273]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.886337]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.886380]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.886391]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.886400]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.886409]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.886416] ---[ end trace b7ca82141b65d10e ]---
>Oct 26 00:45:26 4720z kernel: [242661.912114] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.912176] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.912179] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:26 4720z kernel: [242661.912181] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.912288] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.912291] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.912294]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:26 4720z kernel: [242661.912302]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:26 4720z kernel: [242661.912309]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:26 4720z kernel: [242661.912317] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.912327]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.912335]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.912368]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.912397]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.912402]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.912432]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.912469]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.912498]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.912527]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.912546]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.912577]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.912585]  [<c11beb18>] ? fsnotify+0x198/0x250
>Oct 26 00:45:26 4720z kernel: [242661.912603]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.912730]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.912734]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.912740]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.912743] ---[ end trace b7ca82141b65d10f ]---
>Oct 26 00:45:26 4720z kernel: [242661.917080] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.917139] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.917142] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:26 4720z kernel: [242661.917144] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.917251] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.917254] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.917257]  00000000 00000000 f2255c90 c1683110 f89adb0c f2255cc0 c1059c54 f89afb04
>Oct 26 00:45:26 4720z kernel: [242661.917265]  f2255cec 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:26 4720z kernel: [242661.917272]  00000000 f2255cd8 c1059d13 00000009 f2255cd0 f89afb04 f2255cec f2255cfc
>Oct 26 00:45:26 4720z kernel: [242661.917281] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.917292]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.917302]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.917336]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917365]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917369]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.917400]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917438]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917467]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917496]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917525]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917550]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.917580]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917609]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.917635]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.917657]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.917685]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.917714]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.917722]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:45:26 4720z kernel: [242661.917728]  [<c104037d>] ? ack_apic_level+0x6d/0x110
>Oct 26 00:45:26 4720z kernel: [242661.917745]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.917750]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.917755]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.917760]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.917763] ---[ end trace b7ca82141b65d110 ]---
>Oct 26 00:45:26 4720z kernel: [242661.917818] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.917846] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.917885] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:26 4720z kernel: [242661.917888] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.917994] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.917997] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.917999]  00000000 00000000 f2255c94 c1683110 f89adb0c f2255cc4 c1059c54 f89afb04
>Oct 26 00:45:26 4720z kernel: [242661.918007]  f2255cf0 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:26 4720z kernel: [242661.918014]  00000000 f2255cdc c1059d13 00000009 f2255cd4 f89afb04 f2255cf0 f2255d00
>Oct 26 00:45:26 4720z kernel: [242661.918022] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.918029]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.918038]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.918073]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918102]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918106]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.918137]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918174]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918203]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918233]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918256]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.918286]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918315]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.918342]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.918364]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.918392]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.918421]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.918431]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:45:26 4720z kernel: [242661.918436]  [<c104037d>] ? ack_apic_level+0x6d/0x110
>Oct 26 00:45:26 4720z kernel: [242661.918454]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.918458]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.918463]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.918468]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.918471] ---[ end trace b7ca82141b65d111 ]---
>Oct 26 00:45:26 4720z kernel: [242661.980062] ------------[ cut here ]------------
>Oct 26 00:45:26 4720z kernel: [242661.980155] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:45:26 4720z kernel: [242661.980159] pipe A assertion failure (expected on, current off)
>Oct 26 00:45:26 4720z kernel: [242661.980161] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:26 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:26 4720z kernel: [242661.980273] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:26 4720z kernel: [242661.980276] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:26 4720z kernel: [242661.980280]  00000000 00000000 f2255c7c c1683110 f89adb0c f2255cac c1059c54 f89afcfc
>Oct 26 00:45:26 4720z kernel: [242661.980288]  f2255cd8 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:45:26 4720z kernel: [242661.980295]  00000000 f2255cc4 c1059d13 00000009 f2255cbc f89afcfc f2255cd8 f2255d00
>Oct 26 00:45:26 4720z kernel: [242661.980303] Call Trace:
>Oct 26 00:45:26 4720z kernel: [242661.980315]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:26 4720z kernel: [242661.980327]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.980361]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980391]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980395]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:26 4720z kernel: [242661.980427]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980469]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980499]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980529]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980561]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.980590]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980620]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:26 4720z kernel: [242661.980646]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.980668]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.980697]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.980727]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.980735]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:45:26 4720z kernel: [242661.980741]  [<c104037d>] ? ack_apic_level+0x6d/0x110
>Oct 26 00:45:26 4720z kernel: [242661.980758]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:26 4720z kernel: [242661.980764]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:26 4720z kernel: [242661.980768]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:26 4720z kernel: [242661.980774]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:26 4720z kernel: [242661.980777] ---[ end trace b7ca82141b65d112 ]---
>Oct 26 00:45:27 4720z kernel: [242663.048101] [drm:intel_enable_lvds] *ERROR* timed out waiting for panel to power on
>Oct 26 00:45:27 4720z kernel: [242663.048129] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.048195] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.048198] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:27 4720z kernel: [242663.048200] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.048309] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.048312] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.048315]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:45:27 4720z kernel: [242663.048323]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:45:27 4720z kernel: [242663.048330]  f7015000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:45:27 4720z kernel: [242663.048338] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.048349]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.048359]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.048392]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048421]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048426]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.048457]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048493]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048522]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048552]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048582]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.048605]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.048633]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.048663]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.048671]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:45:27 4720z kernel: [242663.048677]  [<c104037d>] ? ack_apic_level+0x6d/0x110
>Oct 26 00:45:27 4720z kernel: [242663.048694]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.048700]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.048704]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.048710]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.048713] ---[ end trace b7ca82141b65d113 ]---
>Oct 26 00:45:27 4720z kernel: [242663.048739] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.048769] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.048772] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:27 4720z kernel: [242663.048774] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.048878] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.048881] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.048883]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:45:27 4720z kernel: [242663.048891]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:45:27 4720z kernel: [242663.048898]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:45:27 4720z kernel: [242663.048906] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.048912]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.048919]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.048952]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048980]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.048985]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.049016]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.049052]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.049082]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.049111]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.049137]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.049159]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.049187]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.049217]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.049226]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:45:27 4720z kernel: [242663.049231]  [<c104037d>] ? ack_apic_level+0x6d/0x110
>Oct 26 00:45:27 4720z kernel: [242663.049248]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.049253]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.049258]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.049263]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.049266] ---[ end trace b7ca82141b65d114 ]---
>Oct 26 00:45:27 4720z kernel: [242663.066998] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.067058] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.067062] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:27 4720z kernel: [242663.067064] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.067171] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.067174] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.067177]  00000000 00000000 f2255c90 c1683110 f89adb0c f2255cc0 c1059c54 f89afb04
>Oct 26 00:45:27 4720z kernel: [242663.067185]  f2255cec 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:27 4720z kernel: [242663.067193]  00000001 f2255cd8 c1059d13 00000009 f2255cd0 f89afb04 f2255cec f2255cfc
>Oct 26 00:45:27 4720z kernel: [242663.067201] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.067211]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.067219]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.067252]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067281]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067286]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.067316]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067353]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067381]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067410]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067440]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067465]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.067494]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067523]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067549]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.067571]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.067599]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.067629]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.067649]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.067654]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.067659]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.067664]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.067667] ---[ end trace b7ca82141b65d115 ]---
>Oct 26 00:45:27 4720z kernel: [242663.067722] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.067749] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.067752] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:27 4720z kernel: [242663.067754] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.067854] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.067856] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.067859]  00000000 00000000 f2255c94 c1683110 f89adb0c f2255cc4 c1059c54 f89afb04
>Oct 26 00:45:27 4720z kernel: [242663.067866]  f2255cf0 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:27 4720z kernel: [242663.067873]  00000001 f2255cdc c1059d13 00000009 f2255cd4 f89afb04 f2255cf0 f2255d00
>Oct 26 00:45:27 4720z kernel: [242663.067881] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.067886]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.067893]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.067925]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067954]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.067959]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.067989]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.068025]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.068092]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.068131]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.068162]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.068200]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.068236]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.068266]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.068288]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.068315]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.068345]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.068365]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.068369]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.068374]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.068378]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.068381] ---[ end trace b7ca82141b65d116 ]---
>Oct 26 00:45:27 4720z kernel: [242663.132066] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.132151] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.132156] pipe B assertion failure (expected on, current off)
>Oct 26 00:45:27 4720z kernel: [242663.132158] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.132298] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.132302] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.132306]  00000000 00000000 f2255c7c c1683110 f89adb0c f2255cac c1059c54 f89afcfc
>Oct 26 00:45:27 4720z kernel: [242663.132317]  f2255cd8 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000042
>Oct 26 00:45:27 4720z kernel: [242663.132327]  00001000 f2255cc4 c1059d13 00000009 f2255cbc f89afcfc f2255cd8 f2255d00
>Oct 26 00:45:27 4720z kernel: [242663.132337] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.132349]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.132363]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.132408]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132446]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132453]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.132494]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132548]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132586]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132624]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132657]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.132695]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132733]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.132766]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.132795]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.132831]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.132869]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.132895]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.132902]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.132908]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.132914]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.132918] ---[ end trace b7ca82141b65d117 ]---
>Oct 26 00:45:27 4720z kernel: [242663.196108] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.196203] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.196210] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:27 4720z kernel: [242663.196215] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.196440] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.196446] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.196452]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:45:27 4720z kernel: [242663.196469]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:45:27 4720z kernel: [242663.196485]  f7015000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:45:27 4720z kernel: [242663.196502] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.196519]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.196536]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.196606]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.196668]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.196678]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.196743]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.196821]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.196884]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.196948]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.197006]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.197054]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.197114]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.197178]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.197222]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.197233]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.197243]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.197253]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.197260] ---[ end trace b7ca82141b65d118 ]---
>Oct 26 00:45:27 4720z kernel: [242663.197268] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.197326] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.197332] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:27 4720z kernel: [242663.197336] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.197554] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.197559] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.197564]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:45:27 4720z kernel: [242663.197580]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:45:27 4720z kernel: [242663.197596]  f7014000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:45:27 4720z kernel: [242663.197613] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.197623]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.197638]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.197707]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.197768]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.197778]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.197843]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.197919]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.197982]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.198045]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.198099]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.198145]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.198205]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.198269]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.198312]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.198322]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.198331]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.198340]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.198346] ---[ end trace b7ca82141b65d119 ]---
>Oct 26 00:45:27 4720z kernel: [242663.198353] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.198413] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.198419] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:27 4720z kernel: [242663.198423] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.198640] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.198645] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.198650]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:45:27 4720z kernel: [242663.198666]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:45:27 4720z kernel: [242663.198682]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:45:27 4720z kernel: [242663.198699] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.198709]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.198724]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.198793]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.198855]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.198866]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.198931]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.199009]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.199072]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.199135]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.199189]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.199235]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.199295]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.199359]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.199402]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.199412]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.199421]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.199431]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.199437] ---[ end trace b7ca82141b65d11a ]---
>Oct 26 00:45:27 4720z kernel: [242663.199443] ------------[ cut here ]------------
>Oct 26 00:45:27 4720z kernel: [242663.199502] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:27 4720z kernel: [242663.199507] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:27 4720z kernel: [242663.199512] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:27 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:27 4720z kernel: [242663.199728] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:27 4720z kernel: [242663.199733] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:27 4720z kernel: [242663.199738]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:45:27 4720z kernel: [242663.199754]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:45:27 4720z kernel: [242663.199770]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:45:27 4720z kernel: [242663.199787] Call Trace:
>Oct 26 00:45:27 4720z kernel: [242663.199797]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:27 4720z kernel: [242663.199812]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.199882]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.199944]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.199954]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:27 4720z kernel: [242663.200020]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.200152]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.200236]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.200318]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:27 4720z kernel: [242663.200384]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.200432]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.200492]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.200556]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.200599]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:27 4720z kernel: [242663.200609]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:27 4720z kernel: [242663.200619]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:27 4720z kernel: [242663.200628]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:27 4720z kernel: [242663.200634] ---[ end trace b7ca82141b65d11b ]---
>Oct 26 00:45:28 4720z kernel: [242664.133011] ------------[ cut here ]------------
>Oct 26 00:45:28 4720z kernel: [242664.133109] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:28 4720z kernel: [242664.133115] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:28 4720z kernel: [242664.133120] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:28 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:28 4720z kernel: [242664.133347] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:28 4720z kernel: [242664.133353] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:28 4720z kernel: [242664.133358]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:28 4720z kernel: [242664.133376]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:28 4720z kernel: [242664.133392]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:28 4720z kernel: [242664.133410] Call Trace:
>Oct 26 00:45:28 4720z kernel: [242664.133427]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:28 4720z kernel: [242664.133444]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.133515]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.133578]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.133588]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:28 4720z kernel: [242664.133654]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.133733]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.133796]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.133851]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.133909]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.133973]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.133990]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.134028]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.134038]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:28 4720z kernel: [242664.134048]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.134058]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:28 4720z kernel: [242664.134065] ---[ end trace b7ca82141b65d11c ]---
>Oct 26 00:45:28 4720z kernel: [242664.314416] ------------[ cut here ]------------
>Oct 26 00:45:28 4720z kernel: [242664.314514] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:28 4720z kernel: [242664.314521] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:28 4720z kernel: [242664.314525] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:28 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:28 4720z kernel: [242664.314751] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:28 4720z kernel: [242664.314757] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:28 4720z kernel: [242664.314763]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:28 4720z kernel: [242664.314780]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:28 4720z kernel: [242664.314796]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:28 4720z kernel: [242664.314813] Call Trace:
>Oct 26 00:45:28 4720z kernel: [242664.314831]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:28 4720z kernel: [242664.314847]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.314918]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.314980]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.314991]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:28 4720z kernel: [242664.315057]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.315177]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.315240]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.315296]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.315338]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.315403]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.315420]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.315458]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.315469]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:28 4720z kernel: [242664.315479]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.315489]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:28 4720z kernel: [242664.315496] ---[ end trace b7ca82141b65d11d ]---
>Oct 26 00:45:28 4720z kernel: [242664.319163] ------------[ cut here ]------------
>Oct 26 00:45:28 4720z kernel: [242664.319263] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:28 4720z kernel: [242664.319270] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:28 4720z kernel: [242664.319275] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:28 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:28 4720z kernel: [242664.319500] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:28 4720z kernel: [242664.319507] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:28 4720z kernel: [242664.319512]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:28 4720z kernel: [242664.319530]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:28 4720z kernel: [242664.319546]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:28 4720z kernel: [242664.319564] Call Trace:
>Oct 26 00:45:28 4720z kernel: [242664.319581]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:28 4720z kernel: [242664.319597]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.319668]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.319746]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.319756]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:28 4720z kernel: [242664.319822]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.319901]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.319964]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.320019]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.320105]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.320192]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.320224]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.320263]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.320274]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:28 4720z kernel: [242664.320283]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.320293]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:28 4720z kernel: [242664.320300] ---[ end trace b7ca82141b65d11e ]---
>Oct 26 00:45:28 4720z kernel: [242664.323584] ------------[ cut here ]------------
>Oct 26 00:45:28 4720z kernel: [242664.323683] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:28 4720z kernel: [242664.323690] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:28 4720z kernel: [242664.323694] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:28 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:28 4720z kernel: [242664.323924] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:28 4720z kernel: [242664.323930] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:28 4720z kernel: [242664.323936]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:28 4720z kernel: [242664.323954]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:28 4720z kernel: [242664.323971]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:28 4720z kernel: [242664.323988] Call Trace:
>Oct 26 00:45:28 4720z kernel: [242664.324006]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:28 4720z kernel: [242664.324073]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.324147]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.324210]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.324221]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:28 4720z kernel: [242664.324289]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.324369]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.324433]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.324492]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.324559]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.324635]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.324653]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.324705]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.324716]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:28 4720z kernel: [242664.324726]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.324736]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:28 4720z kernel: [242664.324744] ---[ end trace b7ca82141b65d11f ]---
>Oct 26 00:45:28 4720z kernel: [242664.612514] ------------[ cut here ]------------
>Oct 26 00:45:28 4720z kernel: [242664.612611] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:28 4720z kernel: [242664.612618] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:28 4720z kernel: [242664.612622] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:28 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:28 4720z kernel: [242664.612849] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:28 4720z kernel: [242664.612855] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:28 4720z kernel: [242664.612861]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:28 4720z kernel: [242664.612878]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:28 4720z kernel: [242664.612894]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:28 4720z kernel: [242664.612912] Call Trace:
>Oct 26 00:45:28 4720z kernel: [242664.612929]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:28 4720z kernel: [242664.612946]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.613017]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.613080]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.613090]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:28 4720z kernel: [242664.613156]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.613235]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.613298]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:28 4720z kernel: [242664.613353]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.613396]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.613461]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.613478]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.613516]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:28 4720z kernel: [242664.613526]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:28 4720z kernel: [242664.613536]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:28 4720z kernel: [242664.613546]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:28 4720z kernel: [242664.613553] ---[ end trace b7ca82141b65d120 ]---
>Oct 26 00:45:29 4720z kernel: [242664.760403] ------------[ cut here ]------------
>Oct 26 00:45:29 4720z kernel: [242664.760495] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:29 4720z kernel: [242664.760501] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:29 4720z kernel: [242664.760505] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:29 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:29 4720z kernel: [242664.760681] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:29 4720z kernel: [242664.760686] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:29 4720z kernel: [242664.760690]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:29 4720z kernel: [242664.760704]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:29 4720z kernel: [242664.760716]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:29 4720z kernel: [242664.760729] Call Trace:
>Oct 26 00:45:29 4720z kernel: [242664.760742]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:29 4720z kernel: [242664.760756]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.760811]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.760858]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.760866]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:29 4720z kernel: [242664.760915]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.760975]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.761022]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.761064]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.761096]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.761145]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.761157]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.761186]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.761194]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:29 4720z kernel: [242664.761201]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.761208]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:29 4720z kernel: [242664.761214] ---[ end trace b7ca82141b65d121 ]---
>Oct 26 00:45:29 4720z kernel: [242664.896319] ------------[ cut here ]------------
>Oct 26 00:45:29 4720z kernel: [242664.896382] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:29 4720z kernel: [242664.896386] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:29 4720z kernel: [242664.896388] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:29 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:29 4720z kernel: [242664.896499] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:29 4720z kernel: [242664.896502] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:29 4720z kernel: [242664.896505]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:29 4720z kernel: [242664.896513]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:29 4720z kernel: [242664.896521]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:29 4720z kernel: [242664.896529] Call Trace:
>Oct 26 00:45:29 4720z kernel: [242664.896540]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:29 4720z kernel: [242664.896549]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.896582]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.896612]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.896616]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:29 4720z kernel: [242664.896647]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.896684]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.896713]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.896742]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.896763]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.896794]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.896803]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.896820]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.896826]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:29 4720z kernel: [242664.896830]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.896835]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:29 4720z kernel: [242664.896838] ---[ end trace b7ca82141b65d122 ]---
>Oct 26 00:45:29 4720z kernel: [242664.901616] ------------[ cut here ]------------
>Oct 26 00:45:29 4720z kernel: [242664.901681] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:29 4720z kernel: [242664.901697] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:29 4720z kernel: [242664.901700] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:29 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:29 4720z kernel: [242664.901809] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:29 4720z kernel: [242664.901812] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:29 4720z kernel: [242664.901815]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:29 4720z kernel: [242664.901823]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:29 4720z kernel: [242664.901831]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:29 4720z kernel: [242664.901839] Call Trace:
>Oct 26 00:45:29 4720z kernel: [242664.901849]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:29 4720z kernel: [242664.901860]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.901893]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.901922]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.901927]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:29 4720z kernel: [242664.901959]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.901996]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.902026]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:29 4720z kernel: [242664.902065]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.902092]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.902123]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.902131]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.902149]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:29 4720z kernel: [242664.902154]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:29 4720z kernel: [242664.902159]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:29 4720z kernel: [242664.902164]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:29 4720z kernel: [242664.902168] ---[ end trace b7ca82141b65d123 ]---
>Oct 26 00:45:39 4720z kernel: [242675.364132] ------------[ cut here ]------------
>Oct 26 00:45:39 4720z kernel: [242675.364220] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:39 4720z kernel: [242675.364223] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:39 4720z kernel: [242675.364294] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:39 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:39 4720z kernel: [242675.364356] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:39 4720z kernel: [242675.364359] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:39 4720z kernel: [242675.364369]  00000000 00000000 f2255b14 c1683110 f89adb0c f2255b44 c1059c54 f89adfb8
>Oct 26 00:45:39 4720z kernel: [242675.364378]  f2255b70 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:45:39 4720z kernel: [242675.364387]  f7015000 f2255b5c c1059d13 00000009 f2255b54 f89adfb8 f2255b70 f2255b9c
>Oct 26 00:45:39 4720z kernel: [242675.364389] Call Trace:
>Oct 26 00:45:39 4720z kernel: [242675.364402]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:39 4720z kernel: [242675.364416]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.364482]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.364540]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.364547]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:39 4720z kernel: [242675.364608]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.364682]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.364741]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.364801]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.364856]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:39 4720z kernel: [242675.364878]  [<f875dccd>] drm_fb_helper_set_par+0x4d/0xb0 [drm_kms_helper]
>Oct 26 00:45:39 4720z kernel: [242675.364886]  [<c136938e>] fb_set_var+0x27e/0x370
>Oct 26 00:45:39 4720z kernel: [242675.364896]  [<c1089c6b>] ? sched_clock_local+0xcb/0x1c0
>Oct 26 00:45:39 4720z kernel: [242675.364904]  [<c1375c2e>] fbcon_blank+0x20e/0x310
>Oct 26 00:45:39 4720z kernel: [242675.364914]  [<c13f74dc>] do_unblank_screen.part.18+0x8c/0x150
>Oct 26 00:45:39 4720z kernel: [242675.364920]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:45:39 4720z kernel: [242675.364927]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.364933]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:45:39 4720z kernel: [242675.364985]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:45:39 4720z kernel: [242675.364997]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.365005]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:45:39 4720z kernel: [242675.365012]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:45:39 4720z kernel: [242675.365018]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:45:39 4720z kernel: [242675.365026]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:45:39 4720z kernel: [242675.365032]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:45:39 4720z kernel: [242675.365039]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:39 4720z kernel: [242675.365045]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.365051]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:39 4720z kernel: [242675.365055] ---[ end trace b7ca82141b65d124 ]---
>Oct 26 00:45:39 4720z kernel: [242675.365062] ------------[ cut here ]------------
>Oct 26 00:45:39 4720z kernel: [242675.365118] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:39 4720z kernel: [242675.365121] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:39 4720z kernel: [242675.365190] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:39 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:39 4720z kernel: [242675.365249] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:39 4720z kernel: [242675.365251] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:39 4720z kernel: [242675.365260]  00000000 00000000 f22558e4 c1683110 f89adb0c f2255914 c1059c54 f89af608
>Oct 26 00:45:39 4720z kernel: [242675.365269]  f2255940 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:45:39 4720z kernel: [242675.365278]  00000000 f225592c c1059d13 00000009 f2255924 f89af608 f2255940 f2255b9c
>Oct 26 00:45:39 4720z kernel: [242675.365279] Call Trace:
>Oct 26 00:45:39 4720z kernel: [242675.365286]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:39 4720z kernel: [242675.365297]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.365364]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.365423]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.365429]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:39 4720z kernel: [242675.365492]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.365566]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.365626]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.365685]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.365751]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:39 4720z kernel: [242675.365772]  [<f875dccd>] drm_fb_helper_set_par+0x4d/0xb0 [drm_kms_helper]
>Oct 26 00:45:39 4720z kernel: [242675.365779]  [<c136938e>] fb_set_var+0x27e/0x370
>Oct 26 00:45:39 4720z kernel: [242675.365788]  [<c1089c6b>] ? sched_clock_local+0xcb/0x1c0
>Oct 26 00:45:39 4720z kernel: [242675.365795]  [<c1375c2e>] fbcon_blank+0x20e/0x310
>Oct 26 00:45:39 4720z kernel: [242675.365804]  [<c13f74dc>] do_unblank_screen.part.18+0x8c/0x150
>Oct 26 00:45:39 4720z kernel: [242675.365810]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:45:39 4720z kernel: [242675.365816]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.365822]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:45:39 4720z kernel: [242675.365874]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:45:39 4720z kernel: [242675.365886]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.365892]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:45:39 4720z kernel: [242675.365898]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:45:39 4720z kernel: [242675.365904]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:45:39 4720z kernel: [242675.365910]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:45:39 4720z kernel: [242675.365917]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:45:39 4720z kernel: [242675.365922]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:39 4720z kernel: [242675.365928]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.365933]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:39 4720z kernel: [242675.365937] ---[ end trace b7ca82141b65d125 ]---
>Oct 26 00:45:39 4720z kernel: [242675.365978] ------------[ cut here ]------------
>Oct 26 00:45:39 4720z kernel: [242675.366037] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:39 4720z kernel: [242675.366039] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:39 4720z kernel: [242675.366110] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:39 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:39 4720z kernel: [242675.366169] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:39 4720z kernel: [242675.366171] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:39 4720z kernel: [242675.366181]  00000000 00000000 f2255b48 c1683110 f89adb0c f2255b78 c1059c54 f89afb04
>Oct 26 00:45:39 4720z kernel: [242675.366190]  f2255ba4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:39 4720z kernel: [242675.366198]  00000000 f2255b90 c1059d13 00000009 f2255b88 f89afb04 f2255ba4 f2255bb4
>Oct 26 00:45:39 4720z kernel: [242675.366200] Call Trace:
>Oct 26 00:45:39 4720z kernel: [242675.366207]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:39 4720z kernel: [242675.366226]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.366293]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.366354]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.366360]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:39 4720z kernel: [242675.366424]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.366501]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.366523]  [<f875cff1>] drm_fb_helper_setcmap+0x101/0x130 [drm_kms_helper]
>Oct 26 00:45:39 4720z kernel: [242675.366535]  [<c136cc10>] fb_set_cmap+0x60/0x120
>Oct 26 00:45:39 4720z kernel: [242675.366554]  [<f875cecd>] ? drm_fb_helper_pan_display+0x9d/0xc0 [drm_kms_helper]
>Oct 26 00:45:39 4720z kernel: [242675.366562]  [<c13686a9>] ? fb_pan_display+0xb9/0x160
>Oct 26 00:45:39 4720z kernel: [242675.366568]  [<c1374fbb>] fbcon_set_palette+0x13b/0x160
>Oct 26 00:45:39 4720z kernel: [242675.366574]  [<c1377828>] fbcon_switch+0x3d8/0x580
>Oct 26 00:45:39 4720z kernel: [242675.366584]  [<c13f6b23>] redraw_screen+0x133/0x1d0
>Oct 26 00:45:39 4720z kernel: [242675.366589]  [<c1375c65>] fbcon_blank+0x245/0x310
>Oct 26 00:45:39 4720z kernel: [242675.366598]  [<c13f74dc>] do_unblank_screen.part.18+0x8c/0x150
>Oct 26 00:45:39 4720z kernel: [242675.366604]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:45:39 4720z kernel: [242675.366611]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.366617]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:45:39 4720z kernel: [242675.366670]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:45:39 4720z kernel: [242675.366683]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.366690]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:45:39 4720z kernel: [242675.366697]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:45:39 4720z kernel: [242675.366703]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:45:39 4720z kernel: [242675.366710]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:45:39 4720z kernel: [242675.366716]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:45:39 4720z kernel: [242675.366722]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:39 4720z kernel: [242675.366728]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.366734]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:39 4720z kernel: [242675.366738] ---[ end trace b7ca82141b65d126 ]---
>Oct 26 00:45:39 4720z kernel: [242675.366835] ------------[ cut here ]------------
>Oct 26 00:45:39 4720z kernel: [242675.366895] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:39 4720z kernel: [242675.366897] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:39 4720z kernel: [242675.366968] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:39 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:39 4720z kernel: [242675.367028] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:39 4720z kernel: [242675.367030] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:39 4720z kernel: [242675.367039]  00000000 00000000 f2255c0c c1683110 f89adb0c f2255c3c c1059c54 f89afb04
>Oct 26 00:45:39 4720z kernel: [242675.367048]  f2255c68 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:39 4720z kernel: [242675.367057]  00000000 f2255c54 c1059d13 00000009 f2255c4c f89afb04 f2255c68 f2255c78
>Oct 26 00:45:39 4720z kernel: [242675.367058] Call Trace:
>Oct 26 00:45:39 4720z kernel: [242675.367066]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:39 4720z kernel: [242675.367078]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.367145]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.367204]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.367210]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:39 4720z kernel: [242675.367273]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.367348]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.367375]  [<f875cff1>] drm_fb_helper_setcmap+0x101/0x130 [drm_kms_helper]
>Oct 26 00:45:39 4720z kernel: [242675.367386]  [<c136cc10>] fb_set_cmap+0x60/0x120
>Oct 26 00:45:39 4720z kernel: [242675.367394]  [<c1374fbb>] fbcon_set_palette+0x13b/0x160
>Oct 26 00:45:39 4720z kernel: [242675.367400]  [<c13f5bf6>] set_palette+0x36/0x60
>Oct 26 00:45:39 4720z kernel: [242675.367406]  [<c13f6b2d>] redraw_screen+0x13d/0x1d0
>Oct 26 00:45:39 4720z kernel: [242675.367411]  [<c1375c65>] fbcon_blank+0x245/0x310
>Oct 26 00:45:39 4720z kernel: [242675.367420]  [<c13f74dc>] do_unblank_screen.part.18+0x8c/0x150
>Oct 26 00:45:39 4720z kernel: [242675.367425]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:45:39 4720z kernel: [242675.367432]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.367438]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:45:39 4720z kernel: [242675.367490]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:45:39 4720z kernel: [242675.367502]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.367508]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:45:39 4720z kernel: [242675.367514]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:45:39 4720z kernel: [242675.367520]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:45:39 4720z kernel: [242675.367526]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:45:39 4720z kernel: [242675.367532]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:45:39 4720z kernel: [242675.367538]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:39 4720z kernel: [242675.367544]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.367549]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:39 4720z kernel: [242675.367552] ---[ end trace b7ca82141b65d127 ]---
>Oct 26 00:45:39 4720z kernel: [242675.378542] ------------[ cut here ]------------
>Oct 26 00:45:39 4720z kernel: [242675.378609] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:39 4720z kernel: [242675.378612] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:39 4720z kernel: [242675.378682] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:39 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:39 4720z kernel: [242675.378742] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:39 4720z kernel: [242675.378745] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:39 4720z kernel: [242675.378754]  00000000 00000000 f2255cf8 c1683110 f89adb0c f2255d28 c1059c54 f89afb04
>Oct 26 00:45:39 4720z kernel: [242675.378763]  f2255d54 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:39 4720z kernel: [242675.378771]  00000000 f2255d40 c1059d13 00000009 f2255d38 f89afb04 f2255d54 f2255d64
>Oct 26 00:45:39 4720z kernel: [242675.378773] Call Trace:
>Oct 26 00:45:39 4720z kernel: [242675.378782]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:39 4720z kernel: [242675.378793]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.378860]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.378919]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.378925]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:39 4720z kernel: [242675.378988]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.379064]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:39 4720z kernel: [242675.379084]  [<f875cff1>] drm_fb_helper_setcmap+0x101/0x130 [drm_kms_helper]
>Oct 26 00:45:39 4720z kernel: [242675.379095]  [<c136cc10>] fb_set_cmap+0x60/0x120
>Oct 26 00:45:39 4720z kernel: [242675.379102]  [<c1374fbb>] fbcon_set_palette+0x13b/0x160
>Oct 26 00:45:39 4720z kernel: [242675.379108]  [<c13f5bf6>] set_palette+0x36/0x60
>Oct 26 00:45:39 4720z kernel: [242675.379114]  [<c13f750d>] do_unblank_screen.part.18+0xbd/0x150
>Oct 26 00:45:39 4720z kernel: [242675.379120]  [<c13f75e0>] do_unblank_screen+0x40/0x70
>Oct 26 00:45:39 4720z kernel: [242675.379126]  [<c13edf1a>] complete_change_console+0x5a/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.379132]  [<c13ef009>] vt_ioctl+0x1059/0x1100
>Oct 26 00:45:39 4720z kernel: [242675.379184]  [<f880a260>] ? drm_setmaster_ioctl+0xb0/0xb0 [drm]
>Oct 26 00:45:39 4720z kernel: [242675.379196]  [<c13edfb0>] ? complete_change_console+0xf0/0xf0
>Oct 26 00:45:39 4720z kernel: [242675.379202]  [<c13e3be8>] tty_ioctl+0x238/0x7b0
>Oct 26 00:45:39 4720z kernel: [242675.379209]  [<c12b9189>] ? common_file_perm+0x49/0xe0
>Oct 26 00:45:39 4720z kernel: [242675.379214]  [<c1150e9a>] ? handle_mm_fault+0x9a/0x150
>Oct 26 00:45:39 4720z kernel: [242675.379221]  [<c1691c97>] ? __do_page_fault+0x287/0x520
>Oct 26 00:45:39 4720z kernel: [242675.379227]  [<c13e39b0>] ? no_tty+0x30/0x30
>Oct 26 00:45:39 4720z kernel: [242675.379233]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:39 4720z kernel: [242675.379239]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:39 4720z kernel: [242675.379244]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:39 4720z kernel: [242675.379247] ---[ end trace b7ca82141b65d128 ]---
>Oct 26 00:45:48 4720z kernel: [242683.820409] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242683.820512] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:48 4720z kernel: [242683.820519] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:48 4720z kernel: [242683.820524] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242683.820753] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242683.820759] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242683.820765]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:48 4720z kernel: [242683.820783]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:48 4720z kernel: [242683.820799]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:48 4720z kernel: [242683.820817] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242683.820834]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242683.820853]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.820926]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.820989]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.821000]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242683.821067]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.821148]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.821211]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.821268]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.821312]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.821378]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.821396]  [<c11beb18>] ? fsnotify+0x198/0x250
>Oct 26 00:45:48 4720z kernel: [242683.821434]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.821444]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242683.821454]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.821465]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242683.821472] ---[ end trace b7ca82141b65d129 ]---
>Oct 26 00:45:48 4720z kernel: [242683.889253] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242683.889328] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:48 4720z kernel: [242683.889332] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:48 4720z kernel: [242683.889335] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242683.889447] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242683.889450] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242683.889453]  00000000 00000000 f2255c90 c1683110 f89adb0c f2255cc0 c1059c54 f89afb04
>Oct 26 00:45:48 4720z kernel: [242683.889462]  f2255cec 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:48 4720z kernel: [242683.889469]  00000001 f2255cd8 c1059d13 00000009 f2255cd0 f89afb04 f2255cec f2255cfc
>Oct 26 00:45:48 4720z kernel: [242683.889478] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242683.889488]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242683.889499]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.889534]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889564]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889569]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242683.889600]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889637]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889666]  [<f895f37c>] ? i9xx_enable_pll+0x11c/0x190 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889696]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889725]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889760]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.889790]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889820]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.889845]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.889867]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.889896]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.889925]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.889946]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.889952]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242683.889956]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.889961]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242683.889965] ---[ end trace b7ca82141b65d12a ]---
>Oct 26 00:45:48 4720z kernel: [242683.890021] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242683.890049] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:48 4720z kernel: [242683.890052] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:48 4720z kernel: [242683.890054] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242683.890155] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242683.890157] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242683.890160]  00000000 00000000 f2255c94 c1683110 f89adb0c f2255cc4 c1059c54 f89afb04
>Oct 26 00:45:48 4720z kernel: [242683.890167]  f2255cf0 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:48 4720z kernel: [242683.890174]  00000001 f2255cdc c1059d13 00000009 f2255cd4 f89afb04 f2255cf0 f2255d00
>Oct 26 00:45:48 4720z kernel: [242683.890182] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242683.890187]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242683.890194]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.890227]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890256]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890260]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242683.890291]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890327]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890356]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890385]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890406]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.890435]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890464]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.890489]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.890511]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.890538]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.890568]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.890588]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.890592]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242683.890597]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.890601]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242683.890604] ---[ end trace b7ca82141b65d12b ]---
>Oct 26 00:45:48 4720z kernel: [242683.952085] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242683.952181] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:45:48 4720z kernel: [242683.952188] pipe B assertion failure (expected on, current off)
>Oct 26 00:45:48 4720z kernel: [242683.952193] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242683.952417] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242683.952423] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242683.952429]  00000000 00000000 f2255c7c c1683110 f89adb0c f2255cac c1059c54 f89afcfc
>Oct 26 00:45:48 4720z kernel: [242683.952446]  f2255cd8 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000042
>Oct 26 00:45:48 4720z kernel: [242683.952463]  00001000 f2255cc4 c1059d13 00000009 f2255cbc f89afcfc f2255cd8 f2255d00
>Oct 26 00:45:48 4720z kernel: [242683.952479] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242683.952496]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242683.952513]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.952584]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.952646]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.952656]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242683.952723]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.952814]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.952876]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.952940]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.952989]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.953053]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.953116]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:48 4720z kernel: [242683.953171]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.953218]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.953278]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.953342]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.953385]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242683.953397]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242683.953406]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242683.953416]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242683.953423] ---[ end trace b7ca82141b65d12c ]---
>Oct 26 00:45:48 4720z kernel: [242684.016135] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242684.016232] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:48 4720z kernel: [242684.016239] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:48 4720z kernel: [242684.016244] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242684.016471] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242684.016477] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242684.016483]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:45:48 4720z kernel: [242684.016501]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:45:48 4720z kernel: [242684.016517]  f7015000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:45:48 4720z kernel: [242684.016534] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242684.016551]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242684.016569]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.016640]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.016702]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.016712]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242684.016778]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.016855]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.016919]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.016983]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.017061]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.017109]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.017170]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.017234]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.017278]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.017289]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242684.017299]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.017310]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242684.017317] ---[ end trace b7ca82141b65d12d ]---
>Oct 26 00:45:48 4720z kernel: [242684.017327] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242684.017387] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:45:48 4720z kernel: [242684.017393] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:45:48 4720z kernel: [242684.017397] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242684.017621] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242684.017627] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242684.017631]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:45:48 4720z kernel: [242684.017648]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:45:48 4720z kernel: [242684.017665]  f7014000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:45:48 4720z kernel: [242684.017681] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242684.017693]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242684.017712]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.017783]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.017846]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.017857]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242684.017923]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.018000]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.018064]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.018127]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.018184]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.018232]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.018292]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.018356]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.018400]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.018410]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242684.018420]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.018430]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242684.018436] ---[ end trace b7ca82141b65d12e ]---
>Oct 26 00:45:48 4720z kernel: [242684.018446] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242684.018507] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:48 4720z kernel: [242684.018513] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:48 4720z kernel: [242684.018517] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242684.018738] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242684.018744] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242684.018749]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:45:48 4720z kernel: [242684.018765]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:45:48 4720z kernel: [242684.018781]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:45:48 4720z kernel: [242684.018798] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242684.018810]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242684.018825]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.018895]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.018958]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.018968]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242684.019033]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.019112]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.019175]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.019238]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.019295]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.019342]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.019403]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.019466]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.019510]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.019520]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242684.019530]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.019539]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242684.019546] ---[ end trace b7ca82141b65d12f ]---
>Oct 26 00:45:48 4720z kernel: [242684.019552] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242684.019612] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:45:48 4720z kernel: [242684.019619] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:45:48 4720z kernel: [242684.019623] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242684.019844] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242684.019850] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242684.019854]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:45:48 4720z kernel: [242684.019871]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:45:48 4720z kernel: [242684.019887]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:45:48 4720z kernel: [242684.019904] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242684.019916]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242684.019935]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.020007]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.020131]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.020164]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242684.020248]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.020337]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.020401]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.020464]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.020522]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.020569]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.020630]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.020715]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.020778]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.020798]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242684.020807]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.020817]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242684.020824] ---[ end trace b7ca82141b65d130 ]---
>Oct 26 00:45:48 4720z kernel: [242684.020910] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242684.020974] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:48 4720z kernel: [242684.020980] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:48 4720z kernel: [242684.020984] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242684.021303] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242684.021308] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242684.021313]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:48 4720z kernel: [242684.021330]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:48 4720z kernel: [242684.021346]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:48 4720z kernel: [242684.021362] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242684.021374]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242684.021390]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.021479]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.021561]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.021589]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242684.021664]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.021744]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.021790]  [<f880e6b2>] ? drm_mode_connector_set_obj_prop+0xa2/0xb0 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.021853]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.021926]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.021977]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.022042]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.022085]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.022095]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242684.022104]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.022114]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242684.022131] ---[ end trace b7ca82141b65d131 ]---
>Oct 26 00:45:48 4720z kernel: [242684.022283] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242684.022349] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:48 4720z kernel: [242684.022354] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:48 4720z kernel: [242684.022358] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242684.022583] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242684.022588] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242684.022593]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:48 4720z kernel: [242684.022609]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:48 4720z kernel: [242684.022626]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:48 4720z kernel: [242684.022642] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242684.022654]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242684.022669]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.022740]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.022804]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.022813]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242684.022880]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.022960]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.023024]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.023076]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.023119]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.023184]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.023202]  [<c100fe03>] ? __switch_to+0x303/0x370
>Oct 26 00:45:48 4720z kernel: [242684.023213]  [<c168aa91>] ? __schedule+0x361/0x6a0
>Oct 26 00:45:48 4720z kernel: [242684.023269]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.023279]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242684.023288]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.023297]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242684.023304] ---[ end trace b7ca82141b65d132 ]---
>Oct 26 00:45:48 4720z kernel: [242684.193591] ------------[ cut here ]------------
>Oct 26 00:45:48 4720z kernel: [242684.193659] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:48 4720z kernel: [242684.193662] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:48 4720z kernel: [242684.193665] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:48 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:48 4720z kernel: [242684.193775] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:48 4720z kernel: [242684.193778] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:48 4720z kernel: [242684.193781]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:48 4720z kernel: [242684.193789]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:48 4720z kernel: [242684.193796]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:48 4720z kernel: [242684.193804] Call Trace:
>Oct 26 00:45:48 4720z kernel: [242684.193814]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:48 4720z kernel: [242684.193823]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.193856]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.193885]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.193890]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:48 4720z kernel: [242684.193920]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.193957]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.193986]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:48 4720z kernel: [242684.194014]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.194034]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.194064]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.194072]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.194089]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:48 4720z kernel: [242684.194095]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:48 4720z kernel: [242684.194099]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:48 4720z kernel: [242684.194104]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:48 4720z kernel: [242684.194107] ---[ end trace b7ca82141b65d133 ]---
>Oct 26 00:45:49 4720z kernel: [242684.719254] ------------[ cut here ]------------
>Oct 26 00:45:49 4720z kernel: [242684.719320] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:45:49 4720z kernel: [242684.719324] PLL state assertion failure (expected on, current off)
>Oct 26 00:45:49 4720z kernel: [242684.719326] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:45:49 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:45:49 4720z kernel: [242684.719435] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:45:49 4720z kernel: [242684.719438] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:45:49 4720z kernel: [242684.719441]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:45:49 4720z kernel: [242684.719449]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:45:49 4720z kernel: [242684.719457]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:45:49 4720z kernel: [242684.719465] Call Trace:
>Oct 26 00:45:49 4720z kernel: [242684.719475]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:45:49 4720z kernel: [242684.719485]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:45:49 4720z kernel: [242684.719518]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:49 4720z kernel: [242684.719547]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:49 4720z kernel: [242684.719552]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:45:49 4720z kernel: [242684.719583]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:45:49 4720z kernel: [242684.719621]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:45:49 4720z kernel: [242684.719651]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:45:49 4720z kernel: [242684.719680]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:45:49 4720z kernel: [242684.719700]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:45:49 4720z kernel: [242684.719731]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:45:49 4720z kernel: [242684.719740]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:45:49 4720z kernel: [242684.719758]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:45:49 4720z kernel: [242684.719763]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:45:49 4720z kernel: [242684.719768]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:45:49 4720z kernel: [242684.719773]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:45:49 4720z kernel: [242684.719776] ---[ end trace b7ca82141b65d134 ]---
>Oct 26 00:46:12 4720z kernel: [242708.356713] ------------[ cut here ]------------
>Oct 26 00:46:12 4720z kernel: [242708.356813] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:46:12 4720z kernel: [242708.356820] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:46:12 4720z kernel: [242708.356825] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:12 4720z kernel: [242708.357058] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:12 4720z kernel: [242708.357064] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:12 4720z kernel: [242708.357070]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:46:12 4720z kernel: [242708.357088]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:46:12 4720z kernel: [242708.357105]  f7014000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:46:12 4720z kernel: [242708.357122] Call Trace:
>Oct 26 00:46:12 4720z kernel: [242708.357140]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:12 4720z kernel: [242708.357158]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.357231]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.357294]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.357305]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:12 4720z kernel: [242708.357373]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.357453]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.357518]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.357582]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.357644]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.357692]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.357718]  [<c1308af6>] ? kobject_uevent_env+0x166/0x5e0
>Oct 26 00:46:12 4720z kernel: [242708.357760]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.357825]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.357844]  [<c119866b>] ? dput+0x4b/0xe0
>Oct 26 00:46:12 4720z kernel: [242708.357882]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.357892]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:12 4720z kernel: [242708.357902]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.357912]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:12 4720z kernel: [242708.357920] ---[ end trace b7ca82141b65d135 ]---
>Oct 26 00:46:12 4720z kernel: [242708.357929] ------------[ cut here ]------------
>Oct 26 00:46:12 4720z kernel: [242708.357991] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:46:12 4720z kernel: [242708.357997] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:46:12 4720z kernel: [242708.358001] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:12 4720z kernel: [242708.358229] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:12 4720z kernel: [242708.358234] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:12 4720z kernel: [242708.358239]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:46:12 4720z kernel: [242708.358256]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:46:12 4720z kernel: [242708.358272]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:46:12 4720z kernel: [242708.358289] Call Trace:
>Oct 26 00:46:12 4720z kernel: [242708.358302]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:12 4720z kernel: [242708.358320]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.358393]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.358456]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.358484]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:12 4720z kernel: [242708.358552]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.358632]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.358695]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.358758]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.358815]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.358861]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.358885]  [<c1308af6>] ? kobject_uevent_env+0x166/0x5e0
>Oct 26 00:46:12 4720z kernel: [242708.358927]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.358991]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.359008]  [<c119866b>] ? dput+0x4b/0xe0
>Oct 26 00:46:12 4720z kernel: [242708.359045]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.359054]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:12 4720z kernel: [242708.359064]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.359074]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:12 4720z kernel: [242708.359081] ---[ end trace b7ca82141b65d136 ]---
>Oct 26 00:46:12 4720z kernel: [242708.366473] ------------[ cut here ]------------
>Oct 26 00:46:12 4720z kernel: [242708.366555] WARNING: CPU: 1 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:12 4720z kernel: [242708.366560] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:12 4720z kernel: [242708.366564] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:12 4720z kernel: [242708.366735] CPU: 1 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:12 4720z kernel: [242708.366740] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:12 4720z kernel: [242708.366744]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:46:12 4720z kernel: [242708.366757]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:12 4720z kernel: [242708.366770]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:46:12 4720z kernel: [242708.366783] Call Trace:
>Oct 26 00:46:12 4720z kernel: [242708.366797]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:12 4720z kernel: [242708.366810]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.366863]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.366928]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.366936]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:12 4720z kernel: [242708.366986]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.367045]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.367092]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.367135]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.367168]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.367217]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.367230]  [<c11beb18>] ? fsnotify+0x198/0x250
>Oct 26 00:46:12 4720z kernel: [242708.367259]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.367267]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:12 4720z kernel: [242708.367274]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.367282]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:12 4720z kernel: [242708.367287] ---[ end trace b7ca82141b65d137 ]---
>Oct 26 00:46:12 4720z kernel: [242708.446783] ------------[ cut here ]------------
>Oct 26 00:46:12 4720z kernel: [242708.446880] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:12 4720z kernel: [242708.446887] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:12 4720z kernel: [242708.446892] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:12 4720z kernel: [242708.447118] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:12 4720z kernel: [242708.447124] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:12 4720z kernel: [242708.447130]  00000000 00000000 f2255c90 c1683110 f89adb0c f2255cc0 c1059c54 f89afb04
>Oct 26 00:46:12 4720z kernel: [242708.447147]  f2255cec 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:12 4720z kernel: [242708.447168]  00000000 f2255cd8 c1059d13 00000009 f2255cd0 f89afb04 f2255cec f2255cfc
>Oct 26 00:46:12 4720z kernel: [242708.447186] Call Trace:
>Oct 26 00:46:12 4720z kernel: [242708.447203]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:12 4720z kernel: [242708.447221]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.447293]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447357]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447367]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:12 4720z kernel: [242708.447434]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447513]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447575]  [<f89621b8>] i9xx_crtc_enable+0xa8/0x150 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447638]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447689]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.447753]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447816]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.447871]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.447919]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.447979]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.448084]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.448124]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:46:12 4720z kernel: [242708.448181]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.448211]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:12 4720z kernel: [242708.448232]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.448244]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:12 4720z kernel: [242708.448251] ---[ end trace b7ca82141b65d138 ]---
>Oct 26 00:46:12 4720z kernel: [242708.448347] ------------[ cut here ]------------
>Oct 26 00:46:12 4720z kernel: [242708.448408] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:12 4720z kernel: [242708.448414] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:12 4720z kernel: [242708.448418] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:12 4720z kernel: [242708.448666] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:12 4720z kernel: [242708.448671] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:12 4720z kernel: [242708.448676]  00000000 00000000 f2255c94 c1683110 f89adb0c f2255cc4 c1059c54 f89afb04
>Oct 26 00:46:12 4720z kernel: [242708.448693]  f2255cf0 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:12 4720z kernel: [242708.448709]  00000000 f2255cdc c1059d13 00000009 f2255cd4 f89afb04 f2255cf0 f2255d00
>Oct 26 00:46:12 4720z kernel: [242708.448726] Call Trace:
>Oct 26 00:46:12 4720z kernel: [242708.448738]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:12 4720z kernel: [242708.448754]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.448826]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.448889]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.448899]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:12 4720z kernel: [242708.448967]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.449047]  [<f895ed7d>] intel_enable_pipe+0x6d/0x150 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.449111]  [<f89621d3>] i9xx_crtc_enable+0xc3/0x150 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.449174]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.449222]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.449286]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.449350]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.449405]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.449452]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.449513]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.449577]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.449593]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:46:12 4720z kernel: [242708.449631]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.449641]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:12 4720z kernel: [242708.449651]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.449660]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:12 4720z kernel: [242708.449667] ---[ end trace b7ca82141b65d139 ]---
>Oct 26 00:46:12 4720z kernel: [242708.512078] ------------[ cut here ]------------
>Oct 26 00:46:12 4720z kernel: [242708.512163] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:1127 assert_pipe+0xd3/0xe0 [i915]()
>Oct 26 00:46:12 4720z kernel: [242708.512170] pipe A assertion failure (expected on, current off)
>Oct 26 00:46:12 4720z kernel: [242708.512175] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:12 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:12 4720z kernel: [242708.512400] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:12 4720z kernel: [242708.512407] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:12 4720z kernel: [242708.512412]  00000000 00000000 f2255c7c c1683110 f89adb0c f2255cac c1059c54 f89afcfc
>Oct 26 00:46:12 4720z kernel: [242708.512430]  f2255cd8 0000068e f89adb0c 00000467 f895ef33 f895ef33 f5d1c000 00000041
>Oct 26 00:46:12 4720z kernel: [242708.512446]  00000000 f2255cc4 c1059d13 00000009 f2255cbc f89afcfc f2255cd8 f2255d00
>Oct 26 00:46:12 4720z kernel: [242708.512463] Call Trace:
>Oct 26 00:46:12 4720z kernel: [242708.512479]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:12 4720z kernel: [242708.512495]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.512566]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.512628]  [<f895ef33>] ? assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.512639]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:12 4720z kernel: [242708.512705]  [<f895ef33>] assert_pipe+0xd3/0xe0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.512796]  [<f895f85e>] intel_enable_primary_plane+0x2e/0xc0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.512859]  [<f89621e1>] i9xx_crtc_enable+0xd1/0x150 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.512922]  [<f8963594>] __intel_set_mode+0x244/0x2f0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.512970]  [<f880f58f>] ? drm_get_connector_name+0x3f/0x50 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.513034]  [<f8964ec7>] intel_set_mode+0x27/0x40 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.513096]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:12 4720z kernel: [242708.513151]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.513198]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.513258]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.513322]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.513338]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:46:12 4720z kernel: [242708.513376]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:12 4720z kernel: [242708.513386]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:12 4720z kernel: [242708.513396]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:12 4720z kernel: [242708.513406]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:12 4720z kernel: [242708.513412] ---[ end trace b7ca82141b65d13a ]---
>Oct 26 00:46:13 4720z kernel: [242709.584086] [drm:intel_enable_lvds] *ERROR* timed out waiting for panel to power on
>Oct 26 00:46:13 4720z kernel: [242709.584119] ------------[ cut here ]------------
>Oct 26 00:46:13 4720z kernel: [242709.584211] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:46:13 4720z kernel: [242709.584218] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:46:13 4720z kernel: [242709.584223] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:13 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:13 4720z kernel: [242709.584448] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:13 4720z kernel: [242709.584454] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:13 4720z kernel: [242709.584460]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:46:13 4720z kernel: [242709.584477]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f60a6580 f63fedc0
>Oct 26 00:46:13 4720z kernel: [242709.584493]  f7015000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:46:13 4720z kernel: [242709.584510] Call Trace:
>Oct 26 00:46:13 4720z kernel: [242709.584527]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:13 4720z kernel: [242709.584544]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.584615]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.584676]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.584686]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:13 4720z kernel: [242709.584752]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.584829]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.584892]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.584956]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.585014]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.585062]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.585122]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.585186]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.585203]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:46:13 4720z kernel: [242709.585240]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.585251]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:13 4720z kernel: [242709.585261]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.585271]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:13 4720z kernel: [242709.585278] ---[ end trace b7ca82141b65d13b ]---
>Oct 26 00:46:13 4720z kernel: [242709.585286] ------------[ cut here ]------------
>Oct 26 00:46:13 4720z kernel: [242709.585345] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9237 check_encoder_state+0x20a/0x280 [i915]()
>Oct 26 00:46:13 4720z kernel: [242709.585351] encoder's hw state doesn't match sw tracking (expected 1, found 0)
>Oct 26 00:46:13 4720z kernel: [242709.585355] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:13 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:13 4720z kernel: [242709.585572] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:13 4720z kernel: [242709.585577] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:13 4720z kernel: [242709.585582]  00000000 00000000 f2255cf4 c1683110 f89adb0c f2255d24 c1059c54 f89adfb8
>Oct 26 00:46:13 4720z kernel: [242709.585598]  f2255d50 0000068e f89adb0c 00002415 f895396a f895396a f7292000 f63fedc0
>Oct 26 00:46:13 4720z kernel: [242709.585615]  f7014000 f2255d3c c1059d13 00000009 f2255d34 f89adfb8 f2255d50 f2255d7c
>Oct 26 00:46:13 4720z kernel: [242709.585631] Call Trace:
>Oct 26 00:46:13 4720z kernel: [242709.585642]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:13 4720z kernel: [242709.585656]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.585725]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.585786]  [<f895396a>] ? check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.585796]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:13 4720z kernel: [242709.585862]  [<f895396a>] check_encoder_state+0x20a/0x280 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.585938]  [<f8964e5e>] intel_modeset_check_state+0x4e/0x90 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.586001]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.586064]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.586118]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.586165]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.586232]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.586297]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.586313]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:46:13 4720z kernel: [242709.586351]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.586360]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:13 4720z kernel: [242709.586370]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.586379]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:13 4720z kernel: [242709.586385] ---[ end trace b7ca82141b65d13c ]---
>Oct 26 00:46:13 4720z kernel: [242709.586392] ------------[ cut here ]------------
>Oct 26 00:46:13 4720z kernel: [242709.586451] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:46:13 4720z kernel: [242709.586457] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:46:13 4720z kernel: [242709.586462] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:13 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:13 4720z kernel: [242709.586679] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:13 4720z kernel: [242709.586684] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:13 4720z kernel: [242709.586688]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:46:13 4720z kernel: [242709.586704]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7015000 f63fedd4
>Oct 26 00:46:13 4720z kernel: [242709.586720]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:46:13 4720z kernel: [242709.586737] Call Trace:
>Oct 26 00:46:13 4720z kernel: [242709.586748]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:13 4720z kernel: [242709.586763]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.586833]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.586896]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.586906]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:13 4720z kernel: [242709.586972]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.587050]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.587114]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.587176]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.587231]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.587278]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.587338]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.587401]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.587417]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:46:13 4720z kernel: [242709.587454]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.587463]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:13 4720z kernel: [242709.587473]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.587482]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:13 4720z kernel: [242709.587488] ---[ end trace b7ca82141b65d13d ]---
>Oct 26 00:46:13 4720z kernel: [242709.587495] ------------[ cut here ]------------
>Oct 26 00:46:13 4720z kernel: [242709.587554] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:9306 check_crtc_state+0x31d/0x360 [i915]()
>Oct 26 00:46:13 4720z kernel: [242709.587560] crtc active state doesn't match with hw state (expected 1, found 0)
>Oct 26 00:46:13 4720z kernel: [242709.587564] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:13 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:13 4720z kernel: [242709.587780] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:13 4720z kernel: [242709.587800] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:13 4720z kernel: [242709.587805]  00000000 00000000 f2255ac4 c1683110 f89adb0c f2255af4 c1059c54 f89af608
>Oct 26 00:46:13 4720z kernel: [242709.587821]  f2255b20 0000068e f89adb0c 0000245a f8959f7d f8959f7d f7014000 f63fedd4
>Oct 26 00:46:13 4720z kernel: [242709.587838]  00000000 f2255b0c c1059d13 00000009 f2255b04 f89af608 f2255b20 f2255d7c
>Oct 26 00:46:13 4720z kernel: [242709.587854] Call Trace:
>Oct 26 00:46:13 4720z kernel: [242709.587866]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:13 4720z kernel: [242709.587882]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.587954]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.588016]  [<f8959f7d>] ? check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.588063]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:13 4720z kernel: [242709.588145]  [<f8959f7d>] check_crtc_state+0x31d/0x360 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.588245]  [<f8964e65>] intel_modeset_check_state+0x55/0x90 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.588325]  [<f8964ed4>] intel_set_mode+0x34/0x40 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.588401]  [<f896513a>] intel_crtc_set_config+0x25a/0x2d0 [i915]
>Oct 26 00:46:13 4720z kernel: [242709.588458]  [<f880fcfb>] drm_mode_set_config_internal+0x4b/0xc0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.588505]  [<f8812ea2>] drm_mode_setcrtc+0x2e2/0x4b0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.588566]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.588630]  [<f8812bc0>] ? drm_mode_setplane+0x3f0/0x3f0 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.588646]  [<c107cda4>] ? hrtimer_interrupt+0x164/0x2d0
>Oct 26 00:46:13 4720z kernel: [242709.588684]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:13 4720z kernel: [242709.588694]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:13 4720z kernel: [242709.588703]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:13 4720z kernel: [242709.588713]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:13 4720z kernel: [242709.588719] ---[ end trace b7ca82141b65d13e ]---
>Oct 26 00:46:15 4720z kernel: [242711.061743] ------------[ cut here ]------------
>Oct 26 00:46:15 4720z kernel: [242711.061811] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:15 4720z kernel: [242711.061815] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:15 4720z kernel: [242711.061817] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:15 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:15 4720z kernel: [242711.061928] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:15 4720z kernel: [242711.061931] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:15 4720z kernel: [242711.061934]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:46:15 4720z kernel: [242711.061942]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:15 4720z kernel: [242711.061950]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:46:15 4720z kernel: [242711.061958] Call Trace:
>Oct 26 00:46:15 4720z kernel: [242711.061969]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:15 4720z kernel: [242711.061979]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.062013]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.062042]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.062047]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:15 4720z kernel: [242711.062078]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.062116]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.062122]  [<c101989b>] ? save_fsave_header+0x2b/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.062152]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.062181]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.062201]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.062232]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.062240]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.062258]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.062264]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:15 4720z kernel: [242711.062268]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.062273]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:15 4720z kernel: [242711.062277] ---[ end trace b7ca82141b65d13f ]---
>Oct 26 00:46:15 4720z kernel: [242711.086376] ------------[ cut here ]------------
>Oct 26 00:46:15 4720z kernel: [242711.086446] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:15 4720z kernel: [242711.086451] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:15 4720z kernel: [242711.086454] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:15 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:15 4720z kernel: [242711.086593] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:15 4720z kernel: [242711.086597] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:15 4720z kernel: [242711.086601]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:46:15 4720z kernel: [242711.086612]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:15 4720z kernel: [242711.086621]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:46:15 4720z kernel: [242711.086632] Call Trace:
>Oct 26 00:46:15 4720z kernel: [242711.086644]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:15 4720z kernel: [242711.086656]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.086700]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.086739]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.086762]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:15 4720z kernel: [242711.086803]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.086851]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.086889]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.086925]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.086952]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.086992]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.087003]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.087026]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.087033]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:15 4720z kernel: [242711.087039]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.087046]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:15 4720z kernel: [242711.087051] ---[ end trace b7ca82141b65d140 ]---
>Oct 26 00:46:15 4720z kernel: [242711.089036] ------------[ cut here ]------------
>Oct 26 00:46:15 4720z kernel: [242711.089105] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:15 4720z kernel: [242711.089110] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:15 4720z kernel: [242711.089113] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:15 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:15 4720z kernel: [242711.089252] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:15 4720z kernel: [242711.089256] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:15 4720z kernel: [242711.089259]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:46:15 4720z kernel: [242711.089270]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:15 4720z kernel: [242711.089280]  00000001 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:46:15 4720z kernel: [242711.089290] Call Trace:
>Oct 26 00:46:15 4720z kernel: [242711.089301]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:15 4720z kernel: [242711.089312]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.089355]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.089393]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.089399]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:15 4720z kernel: [242711.089438]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.089486]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.089524]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.089561]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.089587]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.089628]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.089639]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.089662]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.089670]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:15 4720z kernel: [242711.089675]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.089682]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:15 4720z kernel: [242711.089686] ---[ end trace b7ca82141b65d141 ]---
>Oct 26 00:46:15 4720z kernel: [242711.097557] ------------[ cut here ]------------
>Oct 26 00:46:15 4720z kernel: [242711.097620] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:15 4720z kernel: [242711.097623] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:15 4720z kernel: [242711.097626] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:15 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:15 4720z kernel: [242711.097733] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:15 4720z kernel: [242711.097736] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:15 4720z kernel: [242711.097739]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:46:15 4720z kernel: [242711.097748]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:15 4720z kernel: [242711.097755]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:46:15 4720z kernel: [242711.097763] Call Trace:
>Oct 26 00:46:15 4720z kernel: [242711.097775]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:15 4720z kernel: [242711.097787]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.097820]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.097850]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.097855]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:15 4720z kernel: [242711.097887]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.097924]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.097931]  [<c101989b>] ? save_fsave_header+0x2b/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.097961]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.097990]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.098010]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.098041]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.098050]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.098067]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.098073]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:15 4720z kernel: [242711.098077]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.098083]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:15 4720z kernel: [242711.098087] ---[ end trace b7ca82141b65d142 ]---
>Oct 26 00:46:15 4720z kernel: [242711.110964] ------------[ cut here ]------------
>Oct 26 00:46:15 4720z kernel: [242711.111039] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:15 4720z kernel: [242711.111043] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:15 4720z kernel: [242711.111045] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:15 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:15 4720z kernel: [242711.111151] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:15 4720z kernel: [242711.111154] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:15 4720z kernel: [242711.111157]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:46:15 4720z kernel: [242711.111165]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:15 4720z kernel: [242711.111173]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:46:15 4720z kernel: [242711.111181] Call Trace:
>Oct 26 00:46:15 4720z kernel: [242711.111192]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:15 4720z kernel: [242711.111200]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.111233]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.111262]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.111267]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:15 4720z kernel: [242711.111297]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.111333]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.111339]  [<c101989b>] ? save_fsave_header+0x2b/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.111368]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.111399]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.111419]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.111449]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.111457]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.111475]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.111480]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:15 4720z kernel: [242711.111485]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.111490]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:15 4720z kernel: [242711.111493] ---[ end trace b7ca82141b65d143 ]---
>Oct 26 00:46:15 4720z kernel: [242711.113584] ------------[ cut here ]------------
>Oct 26 00:46:15 4720z kernel: [242711.113644] WARNING: CPU: 0 PID: 1678 at /build/buildd/linux-lts-trusty-3.13.0/drivers/gpu/drm/i915/intel_display.c:922 assert_pll+0x7a/0x80 [i915]()
>Oct 26 00:46:15 4720z kernel: [242711.113648] PLL state assertion failure (expected on, current off)
>Oct 26 00:46:15 4720z kernel: [242711.113650] Modules linked in: snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus usb_storage ctr ccm nls_iso8859_1 serpent_sse2_i586 ablk_helper cryptd glue_helper lrw serpent_generic twofish_generic twofish_i586 twofish_common xts gf128mul nvram pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) vsock bnep rfcomm zram(C) parport_pc ppdev binfmt_misc dm_crypt xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_LOG xt_multiport xt_limit xt_tcpudp xt_addrtype uvcvideo nf_conntrack_ipv4 videobuf2_core nf_defrag_ipv4 xt_state videodev btusb videobuf2_vmalloc videobuf2_memops bluetooth ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast arc4 nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables snd_hda_codec_realtek x_tables snd_hda_intel snd_hda_codec snd_hwdep snd_pcm ath5k snd_seq_midi snd_rawmidi ath snd_seq_midi_event snd_seq r852 snd_timer sm_common snd_seq_device nand joydev mtd mac80211 nand
>Oct 26 00:46:15 4720z kernel: _ids nand_bch acer_wmi snd psmouse r592 bch cfg80211 nand_ecc soundcore memstick sparse_keymap snd_page_alloc serio_raw lpc_ich mac_hid coretemp lp parport sdhci_pci i915 firewire_ohci sdhci tg3 firewire_core drm_kms_helper crc_itu_t ptp drm pps_core i2c_algo_bit wmi video [last unloaded: ac97_bus]
>Oct 26 00:46:15 4720z kernel: [242711.113757] CPU: 0 PID: 1678 Comm: Xorg Tainted: G        WC OX 3.13.0-38-generic #65~precise1-Ubuntu
>Oct 26 00:46:15 4720z kernel: [242711.113760] Hardware name: Acer, inc. Aspire 4720Z    /Nestos          , BIOS v1.3808 02/18/2008
>Oct 26 00:46:15 4720z kernel: [242711.113763]  00000000 00000000 f2255d98 c1683110 f89adb0c f2255dc8 c1059c54 f89afb04
>Oct 26 00:46:15 4720z kernel: [242711.113771]  f2255df4 0000068e f89adb0c 0000039a f895e0fa f895e0fa 00000001 00000001
>Oct 26 00:46:15 4720z kernel: [242711.113779]  00000000 f2255de0 c1059d13 00000009 f2255dd8 f89afb04 f2255df4 f2255e04
>Oct 26 00:46:15 4720z kernel: [242711.113787] Call Trace:
>Oct 26 00:46:15 4720z kernel: [242711.113797]  [<c1683110>] dump_stack+0x41/0x52
>Oct 26 00:46:15 4720z kernel: [242711.113805]  [<c1059c54>] warn_slowpath_common+0x84/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.113838]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.113867]  [<f895e0fa>] ? assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.113871]  [<c1059d13>] warn_slowpath_fmt+0x33/0x40
>Oct 26 00:46:15 4720z kernel: [242711.113902]  [<f895e0fa>] assert_pll+0x7a/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.113938]  [<f8962104>] intel_crtc_load_lut+0x194/0x1a0 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.113967]  [<f8962918>] intel_crtc_gamma_set+0x78/0x80 [i915]
>Oct 26 00:46:15 4720z kernel: [242711.113995]  [<f8814025>] drm_mode_gamma_set_ioctl+0x115/0x120 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.114015]  [<f8804918>] drm_ioctl+0x488/0x530 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.114045]  [<f8813f10>] ? drm_mode_connector_property_set_ioctl+0x50/0x50 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.114053]  [<c1184240>] ? do_sync_read+0x60/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.114071]  [<f8804490>] ? drm_free_buffer+0x30/0x30 [drm]
>Oct 26 00:46:15 4720z kernel: [242711.114076]  [<c1194f92>] do_vfs_ioctl+0x72/0x2e0
>Oct 26 00:46:15 4720z kernel: [242711.114080]  [<c1195297>] SyS_ioctl+0x97/0xa0
>Oct 26 00:46:15 4720z kernel: [242711.114086]  [<c1695b8d>] sysenter_do_call+0x12/0x12
>Oct 26 00:46:15 4720z kernel: [242711.114089] ---[ end trace b7ca82141b65d144 ]---

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