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

[Andrew Inishev]

Ubuntu 12.10. Display randomly freezes for few seconds.

Mar 21 22:20:55 laptop kernel: [ 8539.287011] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 21 22:20:55 laptop kernel: [ 8539.287232] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off

uname -a:

Linux laptop 3.5.0-26-generic #42-Ubuntu SMP Fri Mar 8 23:18:20 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux

Also I have ATI RADEON HD 6300 as a discrete videocard.

/kernel/debug/vgaswitcheroo/switch:
0:IGD:+:Pwr:0000:00:02.0
1:DIS: :Pwr:0000:01:00.0

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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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