You've got an unofficial nvidia installation, so you need to build the kernel module for the updated kernel by hand..
** Changed in: xorg (Ubuntu) Status: Confirmed => Invalid -- 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/829334 Title: Xorg doesn't start after the update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/829334/+subscriptions _______________________________________________ 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