Hello, I occurred the same problem, so I installed 2.6.39-020639rc4-generic #201104191410.
The Unknown display device lost, but with Unity, the dual head screen is broken. The external display is black and the half of lcd laptop is black. I cant see any window in external display. Maybe log attached will be helpful? Thanks ** Attachment added: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773734/+attachment/2166822/+files/Xorg.0.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] [i915] spurious eDP1 display detected as permanently connected (HP ProBook 5320m) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773734/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
