It's been suggested this may be a duplicate of Bug #557829 however I think this bug appeared only after that one was reported.
People might also be interested in the 2nd post of: http://ubuntuforums.org/showthread.php?s=8674fdc2aaebd69745b39dd9f877ed8b&p=9146088 It suggests this bug may cause hardware damage and strongly suggests switching to fglrx in the meantime. -- random crashes with free driver, but not fglrx (ATI Radeon HD 4350) https://bugs.launchpad.net/bugs/565790 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