Bryce, thanks for the feedback. In case it helps, I am attaching the result of "dmesg | grep drm" after booting the same machine with drm.debug=0x04.
Any hints as to what I can try to narrow down the problem or solve it would be very much appreciated, I'm in the dark ;-) ** Attachment added: "dmesg|grep drm (with drm.debug=0x04)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773734/+attachment/2108625/+files/dmesg_drm_debug.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/773734 Title: [Natty] spurious eDP1 display detected as permanently connected, on i915 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs