Comment 43 for bug 1140716

This is also affecting me, running 12.04 Pangolin LTS (Server). Running kernel 3.2.0-38-generic x86_64 has no issues, but when I updated to 3.2.0-39, xorg keeps hanging a few seconds after logging in, the following is in kern.log

Mar 26 09:10:48 D064 kernel: [ 73.020664] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 26 09:10:48 D064 kernel: [ 73.020674] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
Mar 26 09:10:48 D064 kernel: [ 73.023775] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 7849 at 7844, next 7850)
Mar 26 09:11:16 D064 kernel: [ 101.368881] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 26 09:11:16 D064 kernel: [ 101.368908] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 8023 at 8021, next 8024)
Mar 26 09:11:23 D064 kernel: [ 108.015059] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 26 09:11:23 D064 kernel: [ 108.015116] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 8026 at 8021, next 8027)
Mar 26 09:11:30 D064 kernel: [ 114.661230] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 26 09:11:30 D064 kernel: [ 114.661254] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 8029 at 8027, next 8030)
Mar 26 09:11:32 D064 kernel: [ 116.800638] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 26 09:11:32 D064 kernel: [ 116.800660] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 8032 at 8030, next 8033)
Mar 26 09:11:32 D064 kernel: [ 116.800724] [drm:i915_reset] *ERROR* GPU hanging too fast, declaring wedged!
Mar 26 09:11:32 D064 kernel: [ 116.800727] [drm:i915_reset] *ERROR* Failed to reset chip.

I've not tried any alternate kernels yet, but I am running Gnome3. Full package list is attached: Also, output from lspci.