[Bug 946899] Re: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung

[Antonios Hadjigeorgalis]

cat  /var/log/syslog |grep *ERROR*
kernel: [89652.881261] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [89658.951763] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [89665.860399] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [90567.443620] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [90573.514121] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung

lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 12.04.2 LTS
Release:	12.04
Codename:	precise

uname -a
3.5.0-27-generic #46~precise1-Ubuntu SMP Tue Mar 26 19:33:21 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

I recently enable the LTS Hardware enablement stack: 
sudo apt-get install --install-recommends linux-generic-lts-quantal xserver-xorg-lts-quantal libgl1-mesa-glx-lts-quantal

This error is the first major issue I've had since a clean install of
12.04 was done in sept 2012.

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https://bugs.launchpad.net/bugs/946899

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

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