Little more context: I have the same issue and, like Gareth, am also using Ubuntu on Mac hardware (Macbook Pro in my case). That means the external monitor connects via a Thunderbolt port.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1510021 Title: After upgrade from vivid to wily external monitor has only limited resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1510021/+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
