I have an nvidia card, and the same problem. By doing this when the error screen appears I'm able to access Ubuntu 12.04 gui. (I use the gnome shell)
1. CTRL + ALT + F1 2. (login) 3. sudo start lightdm -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/975414 Title: lightdm failed to run To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/975414/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
