I reported a similar bug as #1388511. Is it the same bug? There's a workaround suggested at
http://askubuntu.com/questions/496401/how-to-upgrade-from-xserver-xorg- lts-saucy-to-xserver-xorg-lts-trusty This involves removing the entire GUI, upgrading the distro, and reinstalling the entire GUI. That seems a bit much. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-lts-raring in Ubuntu. https://bugs.launchpad.net/bugs/1274672 Title: Fresh install of 12.04.3 fails to upgrade to 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-lts-raring/+bug/1274672/+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