I don't doubt there are some X crashes hiding here amongst this functionality, however I am not able to reproduce any crashes on my hardware.
Possibly the changes for kernel/X/etc. that have gone in since this was originally reported have fixed whatever was crashing, or perhaps there is something hardware-specific to the crash you saw. I'm going to optimistically assume the former, but you may want to doublecheck if it's the latter; if you do please collect a full backtrace from X (see http://wiki.ubuntu.com/X/Backtracing for directions - I would recommend the gdb approach rather than using apport in this case), reopen this bug (or file a new one), and get my attention on it. The stacktrace indicates a crash in libdrm code; libdrm is really just an interface layer on top of the kernel, so it's certainly plausible that the "real" bug was in the kernel and was fixed with a newer kernel. ** Changed in: xserver-xorg-video-intel (Ubuntu Precise) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1056039 Title: X crashes in drm_intel_gem_bo_close_vma <- drm_intel_gem_bo_unreference_final <- drm_intel_gem_bo_unreference_final ... To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1056039/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp