Bug 89575 - [HSW] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe A
Summary: [HSW] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fi...
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-03-13 21:07 UTC by mikhail.v.gavrilov
Modified: 2017-07-24 22:48 UTC (History)
3 users (show)

See Also:
i915 platform: HSW
i915 features: display/Other

Attachments
kernel log (151.21 KB, text/plain)
2015-03-13 21:07 UTC, mikhail.v.gavrilov 		no flags Details
kernel log (157.66 KB, text/plain)
2015-03-13 21:30 UTC, mikhail.v.gavrilov 		no flags Details
View All

Description mikhail.v.gavrilov 2015-03-13 21:07:07 UTC 
Created attachment 114301 [details]
kernel log

[  133.247006] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe A
[  133.247022] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[  212.329008] ------------[ cut here ]------------
[  212.329028] WARNING: CPU: 0 PID: 1765 at drivers/gpu/drm/i915/i915_gem.c:4284 i915_gem_object_unpin_fence+0x75/0xa0 [i915]()
[  212.329029] WARN_ON(dev_priv->fence_regs[obj->fence_reg].pin_count <= 0)
[  212.329030] Modules linked in:
[  212.329031]  nls_utf8 isofs rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep hid_logitech_hidpp hid_logitech_dj iTCO_wdt iTCO_vendor_support btrfs ppdev xor btusb bluetooth intel_rapl raid6_pq iosf_mbi x86_pkg_temp_thermal rfkill vfat coretemp fat kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic
[  212.329056]  snd_hda_codec_ca0132 serio_raw snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep i2c_i801 snd_seq snd_seq_device snd_pcm snd_timer lpc_ich snd mei_me mei soundcore mfd_core shpchp parport_pc parport tpm_infineon tpm_tis tpm binfmt_misc nfsd auth_rpcgss nfs_acl lockd grace sunrpc i915 8021q garp i2c_algo_bit stp llc drm_kms_helper mrp drm r8169 mii video uas usb_storage
[  212.329075] CPU: 0 PID: 1765 Comm: Xorg Not tainted 4.0.0-0.rc2.git0.1.fc22.x86_64+debug #1
[  212.329076] Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H, BIOS F11 08/12/2014
[  212.329077]  0000000000000000 00000000e8bf84f2 ffff8807cda97a28 ffffffff8187b1b0
[  212.329079]  0000000000000000 ffff8807cda97a80 ffff8807cda97a68 ffffffff810ab45a
[  212.329081]  ffff8807e6ecb000 ffff8807f3a70000 ffff8807ca5e6200 ffffffffa01d2f80
[  212.329083] Call Trace:
[  212.329087]  [<ffffffff8187b1b0>] dump_stack+0x4c/0x65
[  212.329090]  [<ffffffff810ab45a>] warn_slowpath_common+0x8a/0xc0
[  212.329095]  [<ffffffff810ab4e5>] warn_slowpath_fmt+0x55/0x70
[  212.329112]  [<ffffffffa018aff7>] ? intel_cleanup_plane_fb+0x37/0x80 [i915]
[  212.329142]  [<ffffffffa013d655>] i915_gem_object_unpin_fence+0x75/0xa0 [i915]
[  212.329154]  [<ffffffffa017ea45>] intel_unpin_fb_obj+0x25/0x60 [i915]
[  212.329167]  [<ffffffffa018afff>] intel_cleanup_plane_fb+0x3f/0x80 [i915]
[  212.329174]  [<ffffffffa00bf93e>] drm_plane_helper_commit+0x1fe/0x300 [drm_kms_helper]
[  212.329183]  [<ffffffffa00bfada>] drm_plane_helper_update+0x9a/0xf0 [drm_kms_helper]
[  212.329195]  [<ffffffffa018aaf7>] intel_crtc_set_config+0xdc7/0x1020 [i915]
[  212.329206]  [<ffffffffa005b7e9>] drm_mode_set_config_internal+0x69/0x120 [drm]
[  212.329215]  [<ffffffffa005fe56>] drm_mode_setcrtc+0x376/0x5d0 [drm]
[  212.329236]  [<ffffffffa004fdab>] drm_ioctl+0x1db/0x640 [drm]
[  212.329239]  [<ffffffff813a5999>] ? avc_has_perm+0x159/0x2f0
[  212.329241]  [<ffffffff813a9ad5>] ? inode_has_perm.isra.49+0x55/0xa0
[  212.329244]  [<ffffffff8128e788>] do_vfs_ioctl+0x2e8/0x530
[  212.329246]  [<ffffffff8128ea51>] SyS_ioctl+0x81/0xa0
[  212.329248]  [<ffffffff81884be9>] system_call_fastpath+0x12/0x17
[  212.329249] ---[ end trace f022a25615f4a89d ]---
[  212.329269] ------------[ cut here ]------------
[  212.329284] kernel BUG at drivers/gpu/drm/i915/i915_gem.c:4256!
[  212.329308] invalid opcode: 0000 [#1] SMP 
[  212.329319] Modules linked in: nls_utf8 isofs rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep hid_logitech_hidpp hid_logitech_dj iTCO_wdt iTCO_vendor_support btrfs ppdev xor btusb bluetooth intel_rapl raid6_pq iosf_mbi x86_pkg_temp_thermal rfkill vfat coretemp fat kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_hdmi
[  212.329511]  snd_hda_codec_generic snd_hda_codec_ca0132 serio_raw snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep i2c_i801 snd_seq snd_seq_device snd_pcm snd_timer lpc_ich snd mei_me mei soundcore mfd_core shpchp parport_pc parport tpm_infineon tpm_tis tpm binfmt_misc nfsd auth_rpcgss nfs_acl lockd grace sunrpc i915 8021q garp i2c_algo_bit stp llc drm_kms_helper mrp drm r8169 mii video uas usb_storage
[  212.329618] CPU: 0 PID: 1765 Comm: Xorg Tainted: G        W       4.0.0-0.rc2.git0.1.fc22.x86_64+debug #1
[  212.329638] Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H, BIOS F11 08/12/2014
[  212.329655] task: ffff8807ca5ba670 ti: ffff8807cda94000 task.ti: ffff8807cda94000
[  212.329671] RIP: 0010:[<ffffffffa013d44a>]  [<ffffffffa013d44a>] i915_gem_object_ggtt_unpin+0xca/0xd0 [i915]
[  212.329700] RSP: 0018:ffff8807cda97ae0  EFLAGS: 00010246
[  212.329711] RAX: ffff8807f624f100 RBX: ffff8807ca5e6200 RCX: ffff8807f624f100
[  212.329725] RDX: 00000000ffffffff RSI: ffff8807f3a798a8 RDI: ffff8807ca5e6200
[  212.329739] RBP: ffff8807cda97ae0 R08: ffff8807ca5e6300 R09: 0000000000000000
[  212.329753] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8807ca5e6200
[  212.329767] R13: ffffffffa01d2f80 R14: ffff8807e6ecb000 R15: ffff88077d17e600
[  212.329782] FS:  00007f0c75ea99c0(0000) GS:ffff8807fec00000(0000) knlGS:0000000000000000
[  212.329798] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  212.329810] CR2: 00000000009c67a8 CR3: 00000007d12dc000 CR4: 00000000001407f0
[  212.329824] Stack:
[  212.329829]  ffff8807cda97af8 ffffffffa013d462 ffff8807ca5e6200 ffff8807cda97b18
[  212.329846]  ffffffffa017ea4d ffff8807e6ecb000 ffff8807fb355060 ffff8807cda97b38
[  212.329864]  ffffffffa018afff ffff8807f408cc00 ffff88077d17e600 ffff8807cda97bb8
[  212.329882] Call Trace:
[  212.329896]  [<ffffffffa013d462>] i915_gem_object_unpin_from_display_plane+0x12/0x90 [i915]
[  212.329922]  [<ffffffffa017ea4d>] intel_unpin_fb_obj+0x2d/0x60 [i915]
[  212.329943]  [<ffffffffa018afff>] intel_cleanup_plane_fb+0x3f/0x80 [i915]
[  212.329961]  [<ffffffffa00bf93e>] drm_plane_helper_commit+0x1fe/0x300 [drm_kms_helper]
[  212.329981]  [<ffffffffa00bfada>] drm_plane_helper_update+0x9a/0xf0 [drm_kms_helper]
[  212.330005]  [<ffffffffa018aaf7>] intel_crtc_set_config+0xdc7/0x1020 [i915]
[  212.330027]  [<ffffffffa005b7e9>] drm_mode_set_config_internal+0x69/0x120 [drm]
[  212.330049]  [<ffffffffa005fe56>] drm_mode_setcrtc+0x376/0x5d0 [drm]
[  212.330067]  [<ffffffffa004fdab>] drm_ioctl+0x1db/0x640 [drm]
[  212.330082]  [<ffffffff813a5999>] ? avc_has_perm+0x159/0x2f0
[  212.330095]  [<ffffffff813a9ad5>] ? inode_has_perm.isra.49+0x55/0xa0
[  212.330109]  [<ffffffff8128e788>] do_vfs_ioctl+0x2e8/0x530
[  212.330121]  [<ffffffff8128ea51>] SyS_ioctl+0x81/0xa0
[  212.330133]  [<ffffffff81884be9>] system_call_fastpath+0x12/0x17
[  212.330145] Code: 41 83 e1 f0 83 e2 0f 41 09 d1 84 d2 44 88 88 c0 00 00 00 75 07 80 a7 59 01 00 00 7f 5d c3 0f 1f 00 0f 0b 66 0f 1f 44 00 00 0f 0b <0f> 0b 0f 1f 40 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 1e 
[  212.330233] RIP  [<ffffffffa013d44a>] i915_gem_object_ggtt_unpin+0xca/0xd0 [i915]
[  212.330256]  RSP <ffff8807cda97ae0>
[  212.337076] ---[ end trace f022a25615f4a89e ]---
Comment 1 mikhail.v.gavrilov 2015-03-13 21:30:32 UTC 
Created attachment 114302 [details]
kernel log
Comment 2 Ander Conselvan de Oliveira 2015-06-02 13:05:54 UTC 
Do you still have the FIFO underrun message with the patch from bug 90508?
Comment 3 Jani Nikula 2015-10-23 12:08:15 UTC 
Presumed fixed upstream, closing. Please reopen if the problem persists with latest kernels.
Comment 4 Leho Kraav (:macmaN :lkraav) 2015-11-13 10:57:11 UTC 
I'm on kernel 4.2.6 and tried to engage a DELL 34" at 3440x1440 via Dell PR02X dock DisplayPort. It failed with the topic error (among others) visible in dmesg. Jani, "latest kernels" means 4.3+ or?

I think we can ignore the ips_enabled because that's bug 91511 and we know that fix is 4.3+. But what are your thoughts on the rest here?

$ xrandr --output DP1-1-2 --auto --above eDP1

nov   11 15:19:09 papaya /usr/libexec/gdm-x-session[1559]: (II) intel(0): EDID vendor "LGD", prod id 1002
nov   11 15:19:09 papaya /usr/libexec/gdm-x-session[1559]: (II) intel(0): Printing DDC gathered Modelines:
nov   11 15:19:09 papaya /usr/libexec/gdm-x-session[1559]: (II) intel(0): Modeline "1920x1080"x0.0  138.70  1920 1968 2004 2080  1080 1083 1088 1111 +hsync -vsync (66.7 kHz eP)
nov   11 15:19:33 papaya /usr/libexec/gdm-x-session[1559]: (II) intel(0): EDID vendor "LGD", prod id 1002
nov   11 15:19:33 papaya /usr/libexec/gdm-x-session[1559]: (II) intel(0): Printing DDC gathered Modelines:
nov   11 15:19:33 papaya /usr/libexec/gdm-x-session[1559]: (II) intel(0): Modeline "1920x1080"x0.0  138.70  1920 1968 2004 2080  1080 1083 1088 1111 +hsync -vsync (66.7 kHz eP)
nov   11 15:19:33 papaya /usr/libexec/gdm-x-session[1559]: (II) intel(0): Allocated new frame buffer 3440x2520 stride 13824, tiled
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f878 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f8c8 ffff88040b14f8b8 ffffffff8103e0f7 ffff88040b14f8c0
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef01400
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff810d9f0c>] ? get_page_from_freelist+0x470/0x581
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006c50f>] ? drm_modeset_lock+0x56/0xb8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005ec79>] ? _object_find+0x8f/0x9e [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0196bc8>] intel_connector_dpms+0x4c/0x50 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006497a>] drm_mode_obj_set_property_ioctl+0xfe/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a4f>] drm_mode_connector_property_set_ioctl+0x2b/0x2d [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a24>] ? drm_mode_obj_set_property_ioctl+0x1a8/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff8100c2e7>] ? fpu__restore_sig+0x4a/0x4f
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f909 ]---
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f878 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f8c8 ffff88040b14f8b8 ffffffff8103e0f7 ffff88040b14f8c0
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef01400
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff810d9f0c>] ? get_page_from_freelist+0x470/0x581
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006c50f>] ? drm_modeset_lock+0x56/0xb8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005ec79>] ? _object_find+0x8f/0x9e [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0196bc8>] intel_connector_dpms+0x4c/0x50 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006497a>] drm_mode_obj_set_property_ioctl+0xfe/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a4f>] drm_mode_connector_property_set_ioctl+0x2b/0x2d [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a24>] ? drm_mode_obj_set_property_ioctl+0x1a8/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff8100c2e7>] ? fpu__restore_sig+0x4a/0x4f
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f90a ]---
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f878 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f8c8 ffff88040b14f8b8 ffffffff8103e0f7 ffff88040b14f8c0
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef01400
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff810d9f0c>] ? get_page_from_freelist+0x470/0x581
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006c50f>] ? drm_modeset_lock+0x56/0xb8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005ec79>] ? _object_find+0x8f/0x9e [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0196bc8>] intel_connector_dpms+0x4c/0x50 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006497a>] drm_mode_obj_set_property_ioctl+0xfe/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a4f>] drm_mode_connector_property_set_ioctl+0x2b/0x2d [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a24>] ? drm_mode_obj_set_property_ioctl+0x1a8/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff8100c2e7>] ? fpu__restore_sig+0x4a/0x4f
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f90b ]---
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f878 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f8c8 ffff88040b14f8b8 ffffffff8103e0f7 ffff88040b14f8c0
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef01400
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff810d9f0c>] ? get_page_from_freelist+0x470/0x581
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006c50f>] ? drm_modeset_lock+0x56/0xb8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005ec79>] ? _object_find+0x8f/0x9e [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0196bc8>] intel_connector_dpms+0x4c/0x50 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006497a>] drm_mode_obj_set_property_ioctl+0xfe/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a4f>] drm_mode_connector_property_set_ioctl+0x2b/0x2d [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a24>] ? drm_mode_obj_set_property_ioctl+0x1a8/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff8100c2e7>] ? fpu__restore_sig+0x4a/0x4f
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f90c ]---
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f878 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f8c8 ffff88040b14f8b8 ffffffff8103e0f7 ffff88040b14f8c0
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef01400
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff810d9f0c>] ? get_page_from_freelist+0x470/0x581
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006c50f>] ? drm_modeset_lock+0x56/0xb8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005ec79>] ? _object_find+0x8f/0x9e [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0196bc8>] intel_connector_dpms+0x4c/0x50 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa006497a>] drm_mode_obj_set_property_ioctl+0xfe/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a4f>] drm_mode_connector_property_set_ioctl+0x2b/0x2d [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0064a24>] ? drm_mode_obj_set_property_ioctl+0x1a8/0x1a8 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff8100c2e7>] ? fpu__restore_sig+0x4a/0x4f
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f90d ]---
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f7f8 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f848 ffff88040b14f838 ffffffff8103e0f7 ffff88040b14f840
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef02000
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01916e8>] ? __intel_set_mode+0x8cf/0x8e2 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01975f6>] intel_crtc_set_config+0x411/0x4bf [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005fa76>] drm_mode_set_config_internal+0x57/0xe3 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0063c50>] drm_mode_setcrtc+0x3af/0x421 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00638a1>] ? drm_mode_setplane+0x164/0x164 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff8100c2e7>] ? fpu__restore_sig+0x4a/0x4f
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f90e ]---
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f7f8 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f848 ffff88040b14f838 ffffffff8103e0f7 ffff88040b14f840
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef02000
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01916e8>] ? __intel_set_mode+0x8cf/0x8e2 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01975f6>] intel_crtc_set_config+0x411/0x4bf [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005fa76>] drm_mode_set_config_internal+0x57/0xe3 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0063c50>] drm_mode_setcrtc+0x3af/0x421 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00638a1>] ? drm_mode_setplane+0x164/0x164 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff81081359>] ? do_setitimer+0x19b/0x1fb
nov   11 15:19:33 papaya kernel:  [<ffffffff8108149e>] ? SyS_setitimer+0x8a/0xb8
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f90f ]---
nov   11 15:19:33 papaya kernel: [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B
nov   11 15:19:33 papaya kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
nov   11 15:19:33 papaya kernel: [drm:check_crtc_state [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
nov   11 15:19:33 papaya kernel: ------------[ cut here ]------------
nov   11 15:19:33 papaya kernel: WARNING: CPU: 0 PID: 1561 at drivers/gpu/drm/i915/intel_display.c:12326 check_crtc_state+0xb22/0xb90 [i915]()
nov   11 15:19:33 papaya kernel: pipe state doesn't match!
nov   11 15:19:33 papaya kernel: Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device tun squashfs ctr ccm bnep snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt btusb btrtl btbcm btintel bluetooth crc16 dell_wmi sparse_keymap arc4 dell_laptop dcdbas dell_smm_hwmon intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm mac80211 psmouse snd_hda_intel iwlwifi snd_hda_codec i2c_i801 e1000e lpc_ich cfg80211 snd_hda_core mfd_core snd_pcm snd_timer ptp mei_me pps_core snd thermal wmi battery dell_smo8800 dell_rbtn rfkill processor ac drbg xts crc32_pclmul i915 fbcon bitblit softcursor font cfbfillrect cfbimgblt intel_gtt cfbcopyarea sdhci_pci sdhci ehci_pci drm_kms_helper
nov   11 15:19:33 papaya kernel:  ehci_hcd mmc_core drm xhci_pci agpgart xhci_hcd fb fbdev video button
nov   11 15:19:33 papaya kernel: CPU: 0 PID: 1561 Comm: Xorg Tainted: G        W       4.2.6-gentoo+ #75
nov   11 15:19:33 papaya kernel: Hardware name: Dell Inc. Latitude E7440/0PC4X0, BIOS A15 05/19/2015
nov   11 15:19:33 papaya kernel:  0000000000000009 ffff88040b14f7f8 ffffffff814c6011 0000000000000006
nov   11 15:19:33 papaya kernel:  ffff88040b14f848 ffff88040b14f838 ffffffff8103e0f7 ffff88040b14f840
nov   11 15:19:33 papaya kernel:  ffffffffa0186e14 ffff88040c257000 ffff88040bc56800 ffff88008ef01400
nov   11 15:19:33 papaya kernel: Call Trace:
nov   11 15:19:33 papaya kernel:  [<ffffffff814c6011>] dump_stack+0x4c/0x6e
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e0f7>] warn_slowpath_common+0x9c/0xb6
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] ? check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffff8103e152>] warn_slowpath_fmt+0x41/0x43
nov   11 15:19:33 papaya kernel:  [<ffffffffa0186e14>] check_crtc_state+0xb22/0xb90 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01967db>] intel_modeset_check_state+0x4ef/0x890 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01916e8>] ? __intel_set_mode+0x8cf/0x8e2 [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa01975f6>] intel_crtc_set_config+0x411/0x4bf [i915]
nov   11 15:19:33 papaya kernel:  [<ffffffffa005fa76>] drm_mode_set_config_internal+0x57/0xe3 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa0063c50>] drm_mode_setcrtc+0x3af/0x421 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00579a2>] drm_ioctl+0x36e/0x3ff [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffffa00638a1>] ? drm_mode_setplane+0x164/0x164 [drm]
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fda3>] do_vfs_ioctl+0x372/0x420
nov   11 15:19:33 papaya kernel:  [<ffffffff813fd3e9>] ? __sys_recvmsg+0x3d/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff8112fe90>] SyS_ioctl+0x3f/0x5e
nov   11 15:19:33 papaya kernel:  [<ffffffff814ca497>] entry_SYSCALL_64_fastpath+0x12/0x6a
nov   11 15:19:33 papaya kernel: ---[ end trace 65773cdd74c5f910 ]---
Comment 5 Leho Kraav (:macmaN :lkraav) 2016-03-06 10:33:18 UTC 
I can confirm success on kernel 4.4.4 with up to date everything. Both monitors connected through the dock, which hasn't been possible for a long time.

$ [-] xrandr --listmonitors
Monitors: 3
 0: +eDP1 1920/309x1080/174+0+1440  eDP1
 1: +DP1-1 3440/798x1440/335+0+0  DP1-1
 2: +DP1-2 1080/509x1920/286+3440+0  DP1-2

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