[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung

[Kevin Brubeck Unhammer]

I had a crash last Monday on Xubuntu 12.04.1 LTS. It happened after browsing with Firefox for some hours IIRC. I did a kernel update from linux-image-3.2.0-29-generic:amd64 to linux-image-3.2.0-33-generic:amd64 the previous Thursday, so it might have been introduced then.

The mouse pointer was movable, everything else was still, clicking had no effect, keyboard had no effect (e.g. tried ctrl+alt+f1, I didn't know about alt+sysrq before now)

The laptop is a Thinkpad X220 with a hardware switch to turn off and on all radio (wifi, bluetooth, 3G) so I tried that, it had no effect. Then I tried ssh-ing into the machine, and apparantly network-manager was still running and had managed to connect after I switched wifi off and on again. From within ssh everything seemed just fine. I tried killing firefox and restarting lightdm, this had no effect though (how does one restart X in Xubuntu?).

I will collect more info if it happens again (saw https://help.ubuntu.com/community/DebuggingSystemCrash after I had rebooted), but for now I've pasted the relevant bits from /var/log/syslog* at http://pastebin.ubuntu.com/1393943/ (all the way down to where I hit the radio switch).

Please let me know if there's any more info I can collect, I don't know how to provoke the bug though.

$ apt-cache policy xorg
xorg:
  Installert: 1:7.6+12ubuntu1
  Kandidat: 1:7.6+12ubuntu1
  Versjonstabell:
 *** 1:7.6+12ubuntu1 0
        500 http://no.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-33.52-generic 3.2.31
Uname: Linux 3.2.0-33-generic x86_64
ApportVersion: 2.0.1-0ubuntu15
Architecture: amd64
Date: Thu Nov 29 09:26:05 2012
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=nn:en
 TERM=screen
 PATH=(custom, user)
 LANG=nn_NO.UTF-8
 SHELL=/bin/bash
SourcePackage: xorg
UpgradeStatus: Upgraded to precise on 2012-05-11 (201 days ago)

[penalvch (penalvch)]

Kevin Brubeck Unhammer, thank you for reporting this and helping make Ubuntu better. Could you please attach directly to this report the log that shows this problem (including the lead up to the crash, and the crash itself)?

For more on this, please see https://help.ubuntu.com/community/ReportingBugs#Adding_attachments_to_an_existing_Launchpad_bug .

Thank you for your understanding.

[penalvch (penalvch)]

Kevin Brubeck Unhammer, thank you for attaching the requested file. It appears this problem occurred after resuming from suspend, correct? If so, is this reproducible after cold start/restart with no suspend?

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]