Created attachment 88390 [details]
While playing Minecraft on GNOME Shell, the GPU frequently hangs and is reset with messages like:
[drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0xd537000 ctx 1) at 0xd5371c8
Thinkpad X220 Tablet (SNB), BIOS 1.37
Arch Linux x86_64
Created attachment 88391 [details]
Created attachment 88392 [details]
Created attachment 88393 [details]
Created attachment 88394 [details]
Created attachment 88395 [details]
I believe this is bug #70151, which I just fixed a few days ago.
Could you please try with Mesa master? (You may still get an occasional hang, but it should be /much/ less frequent, and won't have "IPEHR: 0x79050005" in the i915_error_state.)
If not, the fixes ought to land in Mesa 9.2.4.
Seems to have cleared up, indeed. No hangs so far.
*** This bug has been marked as a duplicate of bug 70151 ***