https://bugs.freedesktop.org/show_bug.cgi?id=28774
--- Comment #7 from Rafał Miłecki zajec5@gmail.com 2010-06-27 00:24:27 PDT --- Created an attachment (id=36535) --> (https://bugs.freedesktop.org/attachment.cgi?id=36535) [BOOT + UMS r] Xorg.0.log
After booting with HDMI attached (and seeing picture on it) I started X using radeon UMS. TV switched to 720p and was still working!