Created attachment 108055 [details]
Regulary, display freezes for while and sometimes restart, sometimes not.
[15687.999007] [drm:ring_stuck] *ERROR* Kicking stuck semaphore on render ring
[15687.999012] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[15687.999013] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[15687.999014] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[15687.999014] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[15687.999015] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
Ubuntu 14.04 amd64
Created attachment 108056 [details]
*** This bug has been marked as a duplicate of bug 54226 ***