https://bugs.freedesktop.org/show_bug.cgi?id=43858
--- Comment #5 from Valter valter.giovannetti@alice.it 2012-01-11 06:33:21 PST --- No, no! I have a single monitor! If I use the VGA output is okay. If I use the DVI output of the monitor flashes. Should I disable the VGA output? How can I?