Aha! https://bugs.launchpad.net/bugs/367051 would seem to be another instance of this. My Graphics card is Radeon 1300X. I've been getting the occasional X lockups too.
-- [RV280] glyph corruption and occasional X lockup on radeon 9200 se https://bugs.launchpad.net/bugs/373968 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ 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