https://bugs.freedesktop.org/show_bug.cgi?id=42678
--- Comment #7 from Alex Deucher agd5f@yahoo.com 2011-11-07 12:36:05 PST --- (In reply to comment #6)
I think I am using 7.11-0ubuntu3 (if that makes sense)
Can you try a newer version? I believe ubuntu provides testing PPAs.
How do I turn on non-interlaced mode?
xrandr --output DisplayPort-0 --mode 1920x1200