Weird, this didn't happen for me on the systems I tested prior to the upload. I wonder if some package uninstalled during your upgrade. Please execute the following command in a terminal after reproducing the issue, and it it will automatically gather debugging information needed for this bug:
apport-collect 737651 ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. https://bugs.launchpad.net/bugs/737651 Title: gdm fails to load /usr/bin/X after update to Xorg 1.10.0-0ubuntu1 _______________________________________________ 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