I have also installed the 2.6.33-997-generic kernel from the PPA and was able to get a batchbuffer dump after one of the incidents.
** Attachment added: "i915-Batchbuffer-Dump-20100402.txt" http://launchpadlibrarian.net/42973152/i915-Batchbuffer-Dump-20100402.txt -- MASTER: [i845] GPU lockup (apport-crash) https://bugs.launchpad.net/bugs/541492 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xf86-video-intel. _______________________________________________ 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