Hi, I am also having an issue with an amd64 system, the tv-out works fine on my system until I play a video in mythtv, at that point a blue rectangle appears on the screen the size of the video. I am running gentoo x11-base/xorg- server-1.3.0.0-r2 and x11-drivers/xf86-video-ati-6.7.196 or x11-drivers/xf86-video-ati-9999 (git from yesterday) 01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AP [Radeon 9600] (prog-if 00 [VGA]) Is this a known issue? Is there anything I can do to help test/fix this? Cheers.