Created attachment 128888 [details] GPU crash dump [389854.637836] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [389867.846601] [drm] GPU HANG: ecode 9:0:0x84dffff8, in Xorg [1016], reason: Hang on render ring, action: reset [389867.846604] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [389867.846606] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel [389867.846608] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [389867.846609] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. [389867.846611] [drm] GPU crash dump saved to /sys/class/drm/card0/error [389867.846802] drm/i915: Resetting chip after gpu hang
To be honest I'm running a 4.8-rc7 kernel, so I can well believe this has been fixed.
(In reply to richvdh from comment #1) > To be honest I'm running a 4.8-rc7 kernel, so I can well believe this has > been fixed. richvdh, please update your kernel and xf86-video-intel, and confirm whether or not this is fixed. BTW, if it still occurs, add "drm.debug=0xe" at your boot command line and attached as well kernel log.
I've now (finally) switched to kernel 4.10-rc6. I'm using the latest xf86-video-intel available from ubuntu for 16.04 [1]. Given I've only ever seen this hang once (so it would be difficult to know if an upgrade fixes it or not), I'm not convinced that expending the effort on building and installing from source would be worthwhile. [1]: https://launchpad.net/ubuntu/+source/xserver-xorg-video-intel/2:2.99.917+git20160325-1ubuntu1.2
thanks for the update richvdh, I will set this bug as resolved for now. if the problem occurs (same issue) please reopen the bug. Other wise close this bug.
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