Created attachment 103991 [details] /sys/class/drm/card0/error [drm] stuck on render ring [drm] GPU HANG: ecode 0:0xf5fffffe, in Xorg [1964], reason: Ring hung, action: reset Ubuntu 14.04.1 but with Linux 3.15.5-031505-generic.
Created attachment 103992 [details] dmesg
Created attachment 103993 [details] Xorg.0.log
*** This bug has been marked as a duplicate of bug 77104 ***
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