Created attachment 104351 [details] /sys/class/drm/card0/error I am using 64-bit Fedora 20 (kernel 3.15.8) with gnome 3.10.2 on Haswell Celeron G1820 with integrated Intel HD graphics. Sometimes, usually when I am using Mozilla Firefox 31.0, the screen completely freezes, only the mouse cursor moves. I thought I have solved it by updating Intel drivers from "https://01.org/linuxgraphics/", but after two days it happened again. When I run "journalctl", it shows: Aug 09 18:17:52 pc-fedora.group kernel: [drm] stuck on render ring Aug 09 18:17:52 pc-fedora.group kernel: [drm] GPU HANG: ecode 0:0x87d3bffa, in gnome-shell [1510], reason: Ring hung, action: reset Aug 09 18:17:52 pc-fedora.group kernel: [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. Aug 09 18:17:52 pc-fedora.group kernel: [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel Aug 09 18:17:52 pc-fedora.group kernel: [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. Aug 09 18:17:52 pc-fedora.group kernel: [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. Aug 09 18:17:52 pc-fedora.group kernel: [drm] GPU crash dump saved to /sys/class/drm/card0/error Aug 09 18:17:54 pc-fedora.group kernel: [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
*** This bug has been marked as a duplicate of bug 80229 ***
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