Display locks up - [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle

[jippie]

I've been running Kubuntu 14.04.2 LTS for about a year with no problems. Problem started about 3 months ago or so.
- The screen usually locks up when using Firefox, today it happen when I switched windows from Firefox to Konsole (the GUI app). The screen locked half way switching the window borders from blue to grey. The konsole window border on my right monitor is was grey, is now locked faint blue and should have turned to full blue. The Firefox window on the left monitor was full blue, is now slightly going to grey and locked right there and then.
- When the system is locked, which happens every two or three weeks, I can sometimes change to text console but not always. Currently I cannot access console, but I can log in to the box through SSH. Screen blanking (power save) doesn't work when the screen locked. When my box locks up, I usually run full patching before power cycle, some messages in log files may be caused by that.

[vr mei 15 23:12:46 2015] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle
[vr mei 15 23:15:36 2015] INFO: task Xorg:2243 blocked for more than 120 seconds.
[vr mei 15 23:15:36 2015] Tainted: G OX 3.13.0-49-generic #83-Ubuntu
[vr mei 15 23:15:36 2015] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[vr mei 15 23:15:36 2015] Xorg D ffff88023bd134c0 0 2243 2230 0x00400000
[vr mei 15 23:15:36 2015] ffff8800b29d7a18 0000000000000086 ffff88022a6d1800 ffff8800b29d7fd8
[vr mei 15 23:15:36 2015] 00000000000134c0 00000000000134c0 ffff88022a6d1800 ffff880035523000
[vr mei 15 23:15:36 2015] ffff880035472ad8 ffff880035eda800 ffff880035eda800 ffff8800032da780
[vr mei 15 23:15:36 2015] Call Trace:
[vr mei 15 23:15:36 2015] [<ffffffff81725f49>] schedule+0x29/0x70
[vr mei 15 23:15:36 2015] [<ffffffffa015ea65>] intel_crtc_wait_for_pending_flips+0x75/0x110 [i915]
[vr mei 15 23:15:36 2015] [<ffffffff810ab120>] ? prepare_to_wait_event+0x100/0x100
[vr mei 15 23:15:36 2015] [<ffffffffa017008f>] intel_crtc_set_config+0x7ef/0x9a0 [i915]
[vr mei 15 23:15:36 2015] [<ffffffffa0026eed>] drm_mode_set_config_internal+0x5d/0xe0 [drm]
[vr mei 15 23:15:36 2015] [<ffffffffa00a4561>] drm_fb_helper_set_par+0x71/0xf0 [drm_kms_helper]
[vr mei 15 23:15:36 2015] [<ffffffff813cd181>] fb_set_var+0x191/0x430
[vr mei 15 23:15:36 2015] [<ffffffff810a2f60>] ? update_curr+0x80/0x180
[vr mei 15 23:15:36 2015] [<ffffffff813da161>] fbcon_blank+0x1d1/0x2d0
[vr mei 15 23:15:36 2015] [<ffffffff81462d68>] do_unblank_screen+0xb8/0x1f0
[vr mei 15 23:15:36 2015] [<ffffffff81458aba>] complete_change_console+0x5a/0xe0
[vr mei 15 23:15:36 2015] [<ffffffff81459aea>] vt_ioctl+0xfaa/0x11c0
[vr mei 15 23:15:36 2015] [<ffffffff8144d4cd>] tty_ioctl+0x26d/0xbb0
[vr mei 15 23:15:36 2015] [<ffffffff811ffcd1>] ? fsnotify+0x241/0x320
[vr mei 15 23:15:36 2015] [<ffffffff811d1200>] do_vfs_ioctl+0x2e0/0x4c0
[vr mei 15 23:15:36 2015] [<ffffffff811c0521>] ? __sb_end_write+0x31/0x60
[vr mei 15 23:15:36 2015] [<ffffffff811d1461>] SyS_ioctl+0x81/0xa0
[vr mei 15 23:15:36 2015] [<ffffffff8173263d>] system_call_fastpath+0x1a/0x1f

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-52-generic 3.13.0-52.86
ProcVersionSignature: Ubuntu 3.13.0-52.86-generic 3.13.11-ckt18
Uname: Linux 3.13.0-52-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jhendrix 3776 F.... pulseaudio
CurrentDesktop: KDE
Date: Sat May 16 17:32:37 2015
InstallationDate: Installed on 2013-08-13 (640 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-52-generic root=/dev/mapper/vg_diablo-system ro quiet splash nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-52-generic N/A
 linux-backports-modules-3.13.0-52-generic N/A
 linux-firmware 1.127.11
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-04-26 (385 days ago)
dmi.bios.date: 04/06/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: GTG4310H.86A.0031.2010.0406.1752
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DG43GT
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE62768-301
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrGTG4310H.86A.0031.2010.0406.1752:bd04/06/2010:svn:pn:pvr:rvnIntelCorporation:rnDG43GT:rvrAAE62768-301:cvn:ct3:cvr:

[jippie (jph4dotcom)]

I disabled desktop effects for the moment, because some articles on Internet point in that direction and also the lock up clearly happened during the fading effect from one window to the other, as described above.

[Brad Figg (brad-figg)]

This change was made by a bot.

[penalvch (penalvch)]

jippie, thank you for reporting this and helping make Ubuntu better. As per https://downloadcenter.intel.com/product/41036/Intel-Desktop-Board-DG43GT an update to your computer's buggy and outdated BIOS is available (0035). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.

Once the BIOS is updated, and the information above is provided, then please mark this report Status New.

Thank you for your understanding.

[chris pollock (cpollock)]

I have the same problem now with the video freezing while using Firefox although the [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render ring idle error is no longer present. Per request from Chris Wilson on the Intel-Gfx mailing list I am running kernel 4.0.0-997-generic #201503310205 SMP Tue Mar 31 02:07:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux and also xf86-video-intel driver version 2.99.917. I'm running the most current BIOS for my system - Dell OptiPlex 780 System BIOS A15

chris@localhost:~$ sudo lshw
[sudo] password for chris:
localhost
    description: Mini Tower Computer
    product: OptiPlex 780 ()
    vendor: Dell Inc.
    serial: G20PBM1
    width: 64 bits
    capabilities: smbios-2.5 dmi-2.5 vsyscall32
    configuration: administrator_password=enabled boot=normal chassis=mini-tower power-on_password=enabled uuid=44454C4C-3200-1030-8050-C7C04F424D31
  *-core
       description: Motherboard
       product: 0C27VV
       vendor: Dell Inc.
       physical id: 0
       version: A01
       serial: ..CN137400250867.
     *-firmware
          description: BIOS
          vendor: Dell Inc.
          physical id: 0
          version: A15
          date: 08/06/2013
          size: 64KiB
          capacity: 8128KiB
          capabilities: pci pnp apm upgrade shadowing escd cdboot bootselect edd int13floppytoshiba int13floppy720 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification netboot
     *-cpu
          description: CPU
          product: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz
          vendor: Intel Corp.
          physical id: 400
          bus info: cpu@0
          slot: CPU
          size: 3GHz
          width: 64 bits
          clock: 1333MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm dtherm tpr_shadow vnmi flexpriority
          configuration: cores=2 enabledcores=2 threads=2
        *-cache:0
             description: L1 cache
             physical id: 700
             size: 128KiB
             capacity: 128KiB
             capabilities: internal write-back unified
        *-cache:1
             description: L2 cache
             physical id: 701
             size: 6MiB
             capacity: 6MiB
             capabilities: internal varies unified
     *-memory
          description: System Memory
          physical id: 1000
          slot: System board or motherboard
          size: 4GiB
        *-bank:0
             description: DIMM DDR3 Synchronous 1066 MHz (0.9 ns)
             product: M378B5673EH1-CF8
             vendor: Samsung
             physical id: 0
             serial: 94C3C095
             slot: DIMM_1
             size: 2GiB
             width: 64 bits
             clock: 1066MHz (0.9ns)
        *-bank:1
             description: DIMM DDR3 Synchronous 1066 MHz (0.9 ns)
             product: M378B2873EH1-CF8
             vendor: Samsung
             physical i...

[Launchpad Janitor (janitor)]

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