I am not sure if this is the same problem or not. I have a similar issue. I opened a Bug #1296020 for ubuntu 14.04 trusty. This is critical to me. I can NOT use gdm and gnome-shell at all because of this bug. gdm failed to start because of this. gnome-shell shows a black (off) screen. I haven't tried unity yet.
-- 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/1244827 Title: [13.10] Ubuntu detects a non-existing screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1244827/+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
