https://bugs.freedesktop.org/show_bug.cgi?id=26195

--- Comment #24 from Andy Green andy@warmcat.com 2010-04-13 12:21:23 PDT --- I can also confirm it's solved (and compiz!) well done.

However now I get overscan on the HDMI where I had 1:1 pixels before.

I guess it's a different bug if you don't have any hint.