Comment 64 for bug 349412

Now this is interesting. I don't know if it was clear already, but the problem occurs already _before_ starting X. When booting up with the external monitor plugged in, the external display duplicates the internal. First everything is fine, but at some point the resolution (of both) is changed (kms?). From this point onward, the external shows the weird flickering. See attached video (sorry for the really bad quality).