Hi, Same problem after upgrade to Ubuntu 14.04 on Dell XPS Ubuntu Developer Edition.
I attach xrandr verbose output. Regards, Carlos A. ** Attachment added: "xrand.txt" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1244827/+attachment/4095384/+files/xrand.txt -- 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 : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp