I confirm that this is an issue with the Display settings GUI dialog. xrandr from the command line works without any glitches.
-- [GM45, 945] Unable to mirror to external monitor https://bugs.launchpad.net/bugs/368518 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs