https://bugs.freedesktop.org/show_bug.cgi?id=27708
--- Comment #8 from Sergej Pupykin ps@lx-ltd.ru 2011-01-05 15:52:00 PST --- (In reply to comment #7)
The drm EDID checker is pretty strict about what EDIDs it will accept. Try this patch and add drm.edid_strict=0 to your kernel command line.
It stops spamming with drm.edid_strict=0 (2.6.37+this patch)