Comment 7 for bug 294309

Thank you for providing all the necessary information. It is hard to debug if it is not possible to reproduce, though. I assume the Xorg.0.log and Xorg.0.log.old is not copied right after the crash? Can you install the package xserver-xorg-video-intel-dbg? This should leave some useful information in Xorg.0.log in the case of a crash. Then, when/if it happens again, copy /var/log/Xorg.0.log and /var/log/Xorg.0.log.old and upload them here again. If it doesn't happen again, this bug will expire and be closed at some point.