please try to get a backtrace from the crash, by attaching gdb to the Xorg process, and waiting until it crashes. See https://wiki.ubuntu.com/X/Backtracing for instructions. You need to install xserver-xorg-core-dbg and libpixman-1-0-dbg to get the debugging symbols for the backtrace.
** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/765136 Title: [natty] X often crashes since upgrade to natty _______________________________________________ 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