Created attachment 110204 [details] xorg Firefox froze for few seconds and then it unfroze and I saw a notification from KDE telling me that desktop effects were restarted due to graphics reset. After that, everything seems to work as expected. dmesg showed me: [drm] stuck on render ring [drm] stuck on blitter ring [drm] GPU crash dump saved to /sys/class/drm/card0/error [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. SandyBridge in Lenovo laptop OS: Archlinux 64bit kernel 3.14.25 LTS xserver 1.16.2 xorg-video-intel 2.99.916 mesa 10.3.4 libdrm 2.4.58 desktop KDE 4.14.3
Created attachment 110205 [details] dmesg
Created attachment 110206 [details] error
*** This bug has been marked as a duplicate of bug 54226 ***
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