This bug doesn't happen anymore after some upgrade last Thursday or Friday (even though that upgrade introduced other problems). I'm closing it for now.
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/734756 Title: Blank screen when booting with external monitor -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs