https://bugs.freedesktop.org/show_bug.cgi?id=46713
--- Comment #11 from Rafał Miłecki zajec5@gmail.com 2012-03-09 01:29:31 PST --- (In reply to comment #5)
Monitor is Dell 2408WFP in case it matters.
Are you using 1900x1200 resolution? Can you try some smaller one? Does it help?