I experienced the same behaviour during the last 2 days. Now I did an aptitude safe-upgrade with the result, that more and more system error similiar to the ones above show up. I, too use the Intel-driver on an Lenovo T400 notebook.
Right now I bootet to an Live USB-Stick, without any errors arising in the system log so far, so it looks, as if my installation is corrupt. I also did an memtest86 test of the system, which showed no errors. Attached is the output from dmesg, taken until X crashed due to multiple xfce-applets failing. Regards, Lars ** Attachment added: "dmesg output" http://launchpadlibrarian.net/30273695/dmesg -- intermittent system crashes supposedly caused by intel xorg driver https://bugs.launchpad.net/bugs/411704 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel 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