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

[Miklos Juhasz]

I reverted "drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for
scanline waits" and rebuilt kernel 3.2.0-39. I haven't had the problem
ever since.

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

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