Created attachment 118825 [details] GPU crash dump from /sys/class/drm/card0/error I was watching video in mpv player in fullscreen mode. When I tried to switch the player to windowed mode, video playback seemed to have stopped, although sound continued to play. After a couple seconds the screen blinked and system has returned to normal operation. Here is what I have found in dmesg output: [Oct12 00:30] [drm] stuck on render ring [ +0.000844] [drm] GPU HANG: ecode 6:0:0x00675c57, in Xorg [1341], reason: Ring hung, action: reset [ +0.000003] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [ +0.000001] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [ +0.000001] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [ +0.000001] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [ +0.000001] [drm] GPU crash dump saved to /sys/class/drm/card0/error [ +0.007142] drm/i915: Resetting chip after gpu hang ------------------------------------------------------- My CPU is Pentium B970 (Intel HD2000). OS: Ubuntu 15.04 fully updated. Kernel: 3.19.0-30. Mesa: 10.5.9-2.
Created attachment 118826 [details] GPU crash dump from /sys/class/drm/card0/error (XZ archive) I have no idea why Bugzilla has turned a xz archive into plain text file. Reuploading as a valid archive.
(In reply to ukwt from comment #1) > Created attachment 118826 [details] > GPU crash dump from /sys/class/drm/card0/error (XZ archive) > > I have no idea why Bugzilla has turned a xz archive into plain text file. > Reuploading as a valid archive. We seem to have neglected the bug a bit, apologies. ukwt@ya.ru, since There were improvements pushed in kernel & xf86-video-intel that will benefit to your system, so please re-test with latest kernel & xf86-video-intel -alternatively you may use modesetting/glamor with latest mesa version- and mark as REOPENED if you can reproduce (and attach fresh gpu error dump & kernel log) and RESOLVED/* if you cannot reproduce.
Batch buffer corruption (looks like the invalid memset), likely fixed by an update to mesa.
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