[25548.507719] wlan0: associated [25646.460791] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung [25646.461321] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state [25646.463320] [drm:init_ring_common] *ERROR* render ring initialization failed ctl 00000000 head 00000000 tail 00000000 start 00000000 [25646.467476] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25646.467761] i2c i2c-6: NAK from device addr 0x38 msg #0 [25646.481112] [drm] Changing LVDS panel from (+hsync, +vsync) to (-hsync, -vsync) [25646.481644] ------------[ cut here ]------------ [25646.481915] WARNING: at drivers/gpu/drm/i915/intel_display.c:807 intel_enable_pipe+0x12c/0x150 [i915]() [25646.482429] Hardware name: 6464CTO [25646.482619] PLL state assertion failure (expected on, current off) [25646.482958] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25646.488453] Pid: 10879, comm: kworker/u:0 Not tainted 3.4.0-00006-gf4267bb #68 [25646.488840] Call Trace: [25646.488985] [] warn_slowpath_common+0x7f/0xc0 [25646.489313] [] warn_slowpath_fmt+0x46/0x50 [25646.489646] [] intel_enable_pipe+0x12c/0x150 [i915] [25646.490012] [] i9xx_crtc_mode_set+0x8b5/0xe70 [i915] [25646.490377] [] ? _raw_spin_unlock_irqrestore+0x42/0x80 [25646.490759] [] ? drm_vblank_off+0x25d/0x370 [drm] [25646.491152] [] intel_crtc_mode_set+0x71/0xb0 [i915] [25646.491514] [] drm_crtc_helper_set_mode+0x2cd/0x4b0 [drm_kms_helper] [25646.491950] [] ? local_clock+0x47/0x60 [25646.492251] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25646.492709] [] i915_reset+0x423/0x540 [i915] [25646.493039] [] i915_error_work_func+0xc8/0x110 [i915] [25646.493409] [] process_one_work+0x1a5/0x6b0 [25646.493725] [] ? process_one_work+0x13f/0x6b0 [25646.494054] [] ? _raw_spin_lock_irq+0x19/0x80 [25646.494424] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25646.494819] [] worker_thread+0x12e/0x2d0 [25646.495127] [] ? rescuer_thread+0x210/0x210 [25646.495448] [] kthread+0xa2/0xb0 [25646.495719] [] kernel_thread_helper+0x4/0x10 [25646.496047] [] ? finish_task_switch+0x7c/0x120 [25646.496381] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25646.496729] [] ? retint_restore_args+0xe/0xe [25646.497054] [] ? kthread_worker_fn+0x1a0/0x1a0 [25646.497388] [] ? gs_change+0xb/0xb [25646.497694] ---[ end trace 39d7c6985e874899 ]--- [25646.604202] ------------[ cut here ]------------ [25646.604477] WARNING: at drivers/gpu/drm/i915/intel_display.c:948 assert_pipe+0x8e/0x90 [i915]() [25646.604932] Hardware name: 6464CTO [25646.605118] pipe B assertion failure (expected on, current off) [25646.605432] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25646.609817] Pid: 10879, comm: kworker/u:0 Tainted: G W 3.4.0-00006-gf4267bb #68 [25646.610257] Call Trace: [25646.610402] [] warn_slowpath_common+0x7f/0xc0 [25646.610725] [] warn_slowpath_fmt+0x46/0x50 [25646.611068] [] assert_pipe+0x8e/0x90 [i915] [25646.611395] [] intel_enable_plane+0x36/0x90 [i915] [25646.611755] [] i9xx_crtc_mode_set+0x8f7/0xe70 [i915] [25646.612114] [] ? _raw_spin_unlock_irqrestore+0x42/0x80 [25646.612493] [] ? drm_vblank_off+0x25d/0x370 [drm] [25646.612847] [] intel_crtc_mode_set+0x71/0xb0 [i915] [25646.613206] [] drm_crtc_helper_set_mode+0x2cd/0x4b0 [drm_kms_helper] [25646.613635] [] ? local_clock+0x47/0x60 [25646.613932] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25646.614401] [] i915_reset+0x423/0x540 [i915] [25646.614731] [] i915_error_work_func+0xc8/0x110 [i915] [25646.615097] [] process_one_work+0x1a5/0x6b0 [25646.615413] [] ? process_one_work+0x13f/0x6b0 [25646.615739] [] ? _raw_spin_lock_irq+0x19/0x80 [25646.616071] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25646.616468] [] worker_thread+0x12e/0x2d0 [25646.616773] [] ? rescuer_thread+0x210/0x210 [25646.617090] [] kthread+0xa2/0xb0 [25646.617360] [] kernel_thread_helper+0x4/0x10 [25646.617696] [] ? finish_task_switch+0x7c/0x120 [25646.618027] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25646.618357] [] ? retint_restore_args+0xe/0xe [25646.618681] [] ? kthread_worker_fn+0x1a0/0x1a0 [25646.619008] [] ? gs_change+0xb/0xb [25646.621181] ---[ end trace 39d7c6985e87489a ]--- [25646.727997] ------------[ cut here ]------------ [25646.728271] WARNING: at drivers/gpu/drm/i915/intel_display.c:807 intel_enable_pipe+0x12c/0x150 [i915]() [25646.728768] Hardware name: 6464CTO [25646.728955] PLL state assertion failure (expected on, current off) [25646.729289] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25646.734437] Pid: 10879, comm: kworker/u:0 Tainted: G W 3.4.0-00006-gf4267bb #68 [25646.734878] Call Trace: [25646.735026] [] warn_slowpath_common+0x7f/0xc0 [25646.735356] [] warn_slowpath_fmt+0x46/0x50 [25646.735687] [] intel_enable_pipe+0x12c/0x150 [i915] [25646.736053] [] i9xx_crtc_enable+0x141/0x190 [i915] [25646.736412] [] i9xx_crtc_commit+0xe/0x10 [i915] [25646.736750] [] drm_crtc_helper_set_mode+0x325/0x4b0 [drm_kms_helper] [25646.737179] [] ? local_clock+0x47/0x60 [25646.737512] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25646.737993] [] i915_reset+0x423/0x540 [i915] [25646.738325] [] i915_error_work_func+0xc8/0x110 [i915] [25646.738691] [] process_one_work+0x1a5/0x6b0 [25646.739007] [] ? process_one_work+0x13f/0x6b0 [25646.739337] [] ? _raw_spin_lock_irq+0x19/0x80 [25646.739675] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25646.740072] [] worker_thread+0x12e/0x2d0 [25646.740378] [] ? rescuer_thread+0x210/0x210 [25646.740700] [] kthread+0xa2/0xb0 [25646.740992] [] kernel_thread_helper+0x4/0x10 [25646.741321] [] ? finish_task_switch+0x7c/0x120 [25646.741654] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25646.741994] [] ? retint_restore_args+0xe/0xe [25646.742319] [] ? kthread_worker_fn+0x1a0/0x1a0 [25646.742654] [] ? gs_change+0xb/0xb [25646.744973] ---[ end trace 39d7c6985e87489b ]--- [25646.797588] ------------[ cut here ]------------ [25646.797876] WARNING: at drivers/gpu/drm/i915/intel_display.c:948 assert_pipe+0x8e/0x90 [i915]() [25646.798351] Hardware name: 6464CTO [25646.798543] pipe B assertion failure (expected on, current off) [25646.798868] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25646.803360] Pid: 10879, comm: kworker/u:0 Tainted: G W 3.4.0-00006-gf4267bb #68 [25646.803793] Call Trace: [25646.803937] [] warn_slowpath_common+0x7f/0xc0 [25646.804293] [] warn_slowpath_fmt+0x46/0x50 [25646.804618] [] assert_pipe+0x8e/0x90 [i915] [25646.804936] [] intel_enable_plane+0x36/0x90 [i915] [25646.805298] [] i9xx_crtc_enable+0x14f/0x190 [i915] [25646.805651] [] i9xx_crtc_commit+0xe/0x10 [i915] [25646.805982] [] drm_crtc_helper_set_mode+0x325/0x4b0 [drm_kms_helper] [25646.806403] [] ? local_clock+0x47/0x60 [25646.806696] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25646.807140] [] i915_reset+0x423/0x540 [i915] [25646.807477] [] i915_error_work_func+0xc8/0x110 [i915] [25646.807830] [] process_one_work+0x1a5/0x6b0 [25646.808140] [] ? process_one_work+0x13f/0x6b0 [25646.808464] [] ? _raw_spin_lock_irq+0x19/0x80 [25646.808788] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25646.809167] [] worker_thread+0x12e/0x2d0 [25646.809470] [] ? rescuer_thread+0x210/0x210 [25646.809775] [] kthread+0xa2/0xb0 [25646.810045] [] kernel_thread_helper+0x4/0x10 [25646.810369] [] ? finish_task_switch+0x7c/0x120 [25646.810703] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25646.811054] [] ? retint_restore_args+0xe/0xe [25646.811377] [] ? kthread_worker_fn+0x1a0/0x1a0 [25646.811701] [] ? gs_change+0xb/0xb [25646.815227] ---[ end trace 39d7c6985e87489c ]--- [25647.874245] [drm:intel_lvds_enable] *ERROR* timed out waiting for panel to power on [25647.880801] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25647.881099] i2c i2c-6: NAK from device addr 0x38 msg #0 [25647.903527] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25647.903828] i2c i2c-6: NAK from device addr 0x38 msg #0 [25647.917480] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25647.917779] i2c i2c-6: NAK from device addr 0x38 msg #0 [25647.930796] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25647.931085] i2c i2c-6: NAK from device addr 0x38 msg #0 [25653.940862] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung [25653.941824] [drm:init_ring_common] *ERROR* render ring initialization failed ctl 00000000 head 00000000 tail 00000000 start 00000000 [25653.947460] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25653.947742] i2c i2c-6: NAK from device addr 0x38 msg #0 [25653.954460] [drm] Changing LVDS panel from (+hsync, +vsync) to (-hsync, -vsync) [25653.954992] ------------[ cut here ]------------ [25653.955252] WARNING: at drivers/gpu/drm/i915/intel_display.c:807 intel_enable_pipe+0x12c/0x150 [i915]() [25653.955729] Hardware name: 6464CTO [25653.955913] PLL state assertion failure (expected on, current off) [25653.956236] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25653.960475] Pid: 10879, comm: kworker/u:0 Tainted: G W 3.4.0-00006-gf4267bb #68 [25653.960923] Call Trace: [25653.961275] [] warn_slowpath_common+0x7f/0xc0 [25653.961596] [] warn_slowpath_fmt+0x46/0x50 [25653.961915] [] intel_enable_pipe+0x12c/0x150 [i915] [25653.962271] [] i9xx_crtc_mode_set+0x8b5/0xe70 [i915] [25653.962619] [] ? _raw_spin_unlock_irqrestore+0x42/0x80 [25653.962982] [] ? drm_vblank_off+0x25d/0x370 [drm] [25653.963327] [] intel_crtc_mode_set+0x71/0xb0 [i915] [25653.963691] [] drm_crtc_helper_set_mode+0x2cd/0x4b0 [drm_kms_helper] [25653.964170] [] ? local_clock+0x47/0x60 [25653.964453] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25653.964894] [] i915_reset+0x423/0x540 [i915] [25653.965216] [] i915_error_work_func+0xc8/0x110 [i915] [25653.965583] [] process_one_work+0x1a5/0x6b0 [25653.965899] [] ? process_one_work+0x13f/0x6b0 [25653.966222] [] ? _raw_spin_lock_irq+0x19/0x80 [25653.966556] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25653.966955] [] worker_thread+0x12e/0x2d0 [25653.967254] [] ? rescuer_thread+0x210/0x210 [25653.967583] [] kthread+0xa2/0xb0 [25653.967842] [] kernel_thread_helper+0x4/0x10 [25653.968157] [] ? finish_task_switch+0x7c/0x120 [25653.968478] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25653.968808] [] ? retint_restore_args+0xe/0xe [25653.969140] [] ? kthread_worker_fn+0x1a0/0x1a0 [25653.969470] [] ? gs_change+0xb/0xb [25653.969874] ---[ end trace 39d7c6985e87489d ]--- [25654.074213] ------------[ cut here ]------------ [25654.074444] WARNING: at drivers/gpu/drm/i915/intel_display.c:948 assert_pipe+0x8e/0x90 [i915]() [25654.074848] Hardware name: 6464CTO [25654.075013] pipe B assertion failure (expected on, current off) [25654.075290] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25654.079813] Pid: 10879, comm: kworker/u:0 Tainted: G W 3.4.0-00006-gf4267bb #68 [25654.080194] Call Trace: [25654.080320] [] warn_slowpath_common+0x7f/0xc0 [25654.080602] [] warn_slowpath_fmt+0x46/0x50 [25654.080913] [] assert_pipe+0x8e/0x90 [i915] [25654.081199] [] intel_enable_plane+0x36/0x90 [i915] [25654.081512] [] i9xx_crtc_mode_set+0x8f7/0xe70 [i915] [25654.081825] [] ? _raw_spin_unlock_irqrestore+0x42/0x80 [25654.082153] [] ? drm_vblank_off+0x25d/0x370 [drm] [25654.082459] [] intel_crtc_mode_set+0x71/0xb0 [i915] [25654.082771] [] drm_crtc_helper_set_mode+0x2cd/0x4b0 [drm_kms_helper] [25654.083144] [] ? local_clock+0x47/0x60 [25654.083405] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25654.083800] [] i915_reset+0x423/0x540 [i915] [25654.084090] [] i915_error_work_func+0xc8/0x110 [i915] [25654.084428] [] process_one_work+0x1a5/0x6b0 [25654.084703] [] ? process_one_work+0x13f/0x6b0 [25654.084987] [] ? _raw_spin_lock_irq+0x19/0x80 [25654.085278] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25654.085620] [] worker_thread+0x12e/0x2d0 [25654.085886] [] ? rescuer_thread+0x210/0x210 [25654.086163] [] kthread+0xa2/0xb0 [25654.086395] [] kernel_thread_helper+0x4/0x10 [25654.086675] [] ? finish_task_switch+0x7c/0x120 [25654.086962] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25654.087254] [] ? retint_restore_args+0xe/0xe [25654.087550] [] ? kthread_worker_fn+0x1a0/0x1a0 [25654.087839] [] ? gs_change+0xb/0xb [25654.090401] ---[ end trace 39d7c6985e87489e ]--- [25654.194672] ------------[ cut here ]------------ [25654.194902] WARNING: at drivers/gpu/drm/i915/intel_display.c:807 intel_enable_pipe+0x12c/0x150 [i915]() [25654.195336] Hardware name: 6464CTO [25654.195500] PLL state assertion failure (expected on, current off) [25654.195789] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25654.199621] Pid: 10879, comm: kworker/u:0 Tainted: G W 3.4.0-00006-gf4267bb #68 [25654.200001] Call Trace: [25654.200124] [] warn_slowpath_common+0x7f/0xc0 [25654.200406] [] warn_slowpath_fmt+0x46/0x50 [25654.200688] [] intel_enable_pipe+0x12c/0x150 [i915] [25654.201027] [] i9xx_crtc_enable+0x141/0x190 [i915] [25654.201339] [] i9xx_crtc_commit+0xe/0x10 [i915] [25654.201632] [] drm_crtc_helper_set_mode+0x325/0x4b0 [drm_kms_helper] [25654.202010] [] ? local_clock+0x47/0x60 [25654.202269] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25654.202659] [] i915_reset+0x423/0x540 [i915] [25654.202949] [] i915_error_work_func+0xc8/0x110 [i915] [25654.203269] [] process_one_work+0x1a5/0x6b0 [25654.203544] [] ? process_one_work+0x13f/0x6b0 [25654.203827] [] ? _raw_spin_lock_irq+0x19/0x80 [25654.204141] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25654.204483] [] worker_thread+0x12e/0x2d0 [25654.204747] [] ? rescuer_thread+0x210/0x210 [25654.205022] [] kthread+0xa2/0xb0 [25654.205254] [] kernel_thread_helper+0x4/0x10 [25654.205533] [] ? finish_task_switch+0x7c/0x120 [25654.205822] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25654.206113] [] ? retint_restore_args+0xe/0xe [25654.206394] [] ? kthread_worker_fn+0x1a0/0x1a0 [25654.206681] [] ? gs_change+0xb/0xb [25654.209694] ---[ end trace 39d7c6985e87489f ]--- [25654.260859] ------------[ cut here ]------------ [25654.261098] WARNING: at drivers/gpu/drm/i915/intel_display.c:948 assert_pipe+0x8e/0x90 [i915]() [25654.261503] Hardware name: 6464CTO [25654.261668] pipe B assertion failure (expected on, current off) [25654.261943] Modules linked in: bluetooth msr usbhid hid i915 i2c_algo_bit drm_kms_helper drm ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 snd_hda_codec_analog arc4 microcode psmouse serio_raw iwl3945 iwlegacy mac80211 i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support snd_hda_intel cfg80211 snd_hda_codec e1000e snd_pcm snd_page_alloc snd_timer wmi thinkpad_acpi binfmt_misc nvram snd soundcore evdev loop vhost_net tun kvm_intel kvm nfsd exportfs nfs_acl auth_rpcgss lockd sunrpc dm_mod autofs4 pcmcia sr_mod cdrom yenta_socket sdhci_pci sdhci mmc_core ehci_hcd uhci_hcd usbcore usb_common video backlight [25654.266673] Pid: 10879, comm: kworker/u:0 Tainted: G W 3.4.0-00006-gf4267bb #68 [25654.267059] Call Trace: [25654.267185] [] warn_slowpath_common+0x7f/0xc0 [25654.267496] [] warn_slowpath_fmt+0x46/0x50 [25654.267780] [] assert_pipe+0x8e/0x90 [i915] [25654.268065] [] intel_enable_plane+0x36/0x90 [i915] [25654.268455] [] i9xx_crtc_enable+0x14f/0x190 [i915] [25654.268768] [] i9xx_crtc_commit+0xe/0x10 [i915] [25654.269064] [] drm_crtc_helper_set_mode+0x325/0x4b0 [drm_kms_helper] [25654.269438] [] ? local_clock+0x47/0x60 [25654.269698] [] drm_helper_resume_force_mode+0x73/0x170 [drm_kms_helper] [25654.270093] [] i915_reset+0x423/0x540 [i915] [25654.270377] [] i915_error_work_func+0xc8/0x110 [i915] [25654.270693] [] process_one_work+0x1a5/0x6b0 [25654.270988] [] ? process_one_work+0x13f/0x6b0 [25654.271274] [] ? _raw_spin_lock_irq+0x19/0x80 [25654.271565] [] ? ironlake_irq_preinstall+0x1b0/0x1b0 [i915] [25654.271907] [] worker_thread+0x12e/0x2d0 [25654.272171] [] ? rescuer_thread+0x210/0x210 [25654.272445] [] kthread+0xa2/0xb0 [25654.272680] [] kernel_thread_helper+0x4/0x10 [25654.272960] [] ? finish_task_switch+0x7c/0x120 [25654.273248] [] ? _raw_spin_unlock_irq+0x3b/0x60 [25654.273538] [] ? retint_restore_args+0xe/0xe [25654.273818] [] ? kthread_worker_fn+0x1a0/0x1a0 [25654.274127] [] ? gs_change+0xb/0xb [25654.275208] ---[ end trace 39d7c6985e8748a0 ]--- [25655.330942] [drm:intel_lvds_enable] *ERROR* timed out waiting for panel to power on [25655.337488] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25655.337818] i2c i2c-6: NAK from device addr 0x38 msg #0 [25655.354146] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25655.354414] i2c i2c-6: NAK from device addr 0x38 msg #0 [25655.367467] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25655.367716] i2c i2c-6: NAK from device addr 0x38 msg #0 [25655.380784] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25655.381046] i2c i2c-6: NAK from device addr 0x38 msg #0 [25656.937518] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung [25656.938271] [drm:i915_reset] *ERROR* GPU hanging too fast, declaring wedged! [25656.938734] [drm:i915_reset] *ERROR* Failed to reset chip. [25656.947459] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25656.947751] i2c i2c-6: NAK from device addr 0x38 msg #0 [25656.984156] i2c i2c-6: i2c_outb: 0x70, timeout at bit #7 [25656.984432] i2c i2c-6: NAK from device addr 0x38 msg #0