I had the same problem. Now I found out that besides nothing is shown on the screen when select the second monitor, it fixes when I press ctrl + alt + F7.
-- [arrandale] X freezes after plugging in external monitor and selecting System>Preferences>Monitors https://bugs.launchpad.net/bugs/599626 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