Ok, the 1366 mode is causing problems no matter what external monitor is attached. I think it does it more reliably fails with the larger external screen.
Switching the last monitors.xml to 1360 seems to allow it to work. ** Summary changed: - corrupt monitors.xml makes gnome unusable + monitors.xml settings from the display applet can make gnome unusable on next login -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1066048 Title: monitors.xml settings from the display applet can make gnome unusable on next login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1066048/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs