https://bugs.freedesktop.org/show_bug.cgi?id=28671
--- Comment #26 from Alex Deucher agd5f@yahoo.com 2010-06-28 14:09:52 PDT --- Ideally you'd test both a digital and analog monitor on both ports and make sure it works on each. Can you attach your xorg log and dmesg from the final version of the patch? Also, make sure dpms works. when X is running, try 'xset dpms force off' and make sure the montior goes off properly.