Please attach your /var/log/Xorg.0.log from following one of these crashes.
Also, please collect a full backtrace - directions are available at
https://wiki.ubuntu.com/X/Backtracing
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
--
gdm_slave_xioerror crash
https://bugs.launchpad.net/bugs/224671
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
