https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- intel/+bug/759258 was marked as a duplicate, so it's seemingly the same bug. I didn't plug in an external monitor though, and I didn't get a a black screen, my got a while overlay for a few seconds, then it got back to normal and apport said that a system error occurred. I hope these logs can be of help.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/747205 Title: [arrandale] Black screen on all outputs when external VGA is connected -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
