Hi Merelin, unfortunately there are a variety of ways a system can lock
up with this error message, but we need to get the dmesg and
/sys/kernel/debug/dri/0/i915_error_state from point of failure (while
system is locked up).
Easiest way is to let apport capture it directly, which it does
automatically much of the time. I'll close this bug in hopes that next
time it happens apport will catch it and you can file a new bug that
way. If not, please manually collect the info and reopen this bug
report.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/742425
Title:
The system hangs before the gdm greeter due to a GPU lockup (*ERROR*
Hangcheck timer elapsed... GPU hung)
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