https://bugs.freedesktop.org/show_bug.cgi?id=27708
--- Comment #7 from Alex Deucher agd5f@yahoo.com 2011-01-04 15:04:07 PST --- Created an attachment (id=41653) View: https://bugs.freedesktop.org/attachment.cgi?id=41653 Review: https://bugs.freedesktop.org/review?bug=27708&attachment=41653
add edid strict option
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.