On Alberto's advice on IRC, I tried moving ~/.config/monitors.xml out of the way, and that has resolved the problem.
I'm attaching a copy of the old monitors.xml here ** Attachment added: "monitors.xml" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/747205/+attachment/2068291/+files/monitors.xml -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/747205 Title: [arrandale] Black screen on all outputs when external VGA is connected _______________________________________________ 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
