I had this problem in earlier versions (maybe 12.04, not sure), but it was corrected. Recently the bug returned for me.
Ubuntu: 14.04-64 LTS version fresh install. Computer: Dell Inspiron Notebook Processor: Intel® Core™ i7-3632QM CPU @ 2.20GHz × 8 Graphics: Intel® Ivybridge Mobile Driver: X.Org X server - AMD/ATI display driver wrapper xserver-xorg-video-ati opensource Memory: 8GiB -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874241 Title: Wrong resolutions in lightdm login screen when using external monitor connected to laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm-guest-session/+bug/874241/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
