Intel GPU hung
I have a frequently recurring problem with X crashing. It is a well known problem with intel GPU's, but I have been unable to find a solution anywhere:
Sep 11 10:24:10 localhost kernel: [ 3021.777040] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Sep 11 10:24:10 localhost kernel: [ 3021.777240] render error detected, EIR: 0x00000000
Sep 11 10:24:10 localhost kernel: [ 3021.777274] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 229874 at 229873)
X crashes and the machine needs a reboot to recover. The GPU is in the intel 945GM chipset. System is opensusse 11.3, kernel 184.108.40.206-0.1 or 2.6.34-12, kDE 4.4.4.
What causes this? What can I turn on/off to fix this? Thanks for any help.