I have exactly the same GPU, and I don't see this hang. Could you
please try disabling effect plugins to find the culprit?
Also, the /sys/kernel/debug/dri/0/i915_error_state file should contain
useful data after the crash; could you please attach that file?
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Incomplete
** Changed in: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided => High
** Summary changed:
- [i915] drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
+ [GM45] GPU Hang when enabling KDE desktop effects
--
[GM45] GPU Hang when enabling KDE desktop effects
https://bugs.launchpad.net/bugs/644740
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