I'm regularly having troubles with GPU hangs (at least it says so in the logs - I attached one of them). This one happened after returning from suspend. I'm not quite sure which versions are important, I'm running mesa 12.0.1-2, libdrm 2.4.70-1 and xf86-video-intel 1:2.99.917+676+g26f8ab5-1 on a current&updated archlinux. Do you need any more information?
Created attachment 125415 [details]
Error log after suspend
The machine is a Thinkpad x240 with a Intel Core i5-4300U
Hopefully /sys/class/drm/card0/error has more clues. Please attach following the hang upon resume (use cat, and grab it before rebooting).
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Created attachment 125769 [details]
Second example from journalctl
It just happened again, here's another exert from journalctl. Unfortunately I couldn't get /sys/class/drm/card0/error again because the whole system died on me. Hope this helps
Created attachment 125770 [details]
Second example from /sys/class/drm/card0/error
... I'm attaching it anyways - maybe it helps even after a reboot?
Can I in any way help by providing more information and speed up the progress of a fix? It's really bugging me, I can't use my laptop like this and it neither works properly with the LTS nor with the current linux kernel.