I have this same issue on my Dell XPS 13 ultrabook with Intel HD 4000 graphics. I believe that the 3.8.0-19 kernel is causing the issue, if I boot to a previously installed kernel everything works fine. Using the 3.8.0-19 kernel I get nothing on the laptop screen, if I plug something into the display port I will get a X session there. Using the function key to switch between displays does not result in anything being displayed on the laptop screen.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1170232 Title: won't show login screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1170232/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
