https://bugs.freedesktop.org/show_bug.cgi?id=82473
--- Comment #12 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #11)
It's a problem using any connector, VGA being another one I've tried. I did the installation by these instructions to the point, so I shouldn't have fglrx installed (http://forum.xbmc.org/showthread.php?tid=174854). I can try without acceleration if that's fruitful for debugging, but that's not a useful end result for me.
Yes, it's useful for debugging.