I been searching for months on how to get the s-video to work on my pci VGA compatible controller: ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500] card. I found a site with instructions.

This is how I got it to work.

I install Debian 5.0 Lenny Desktop

added the Driver "radeon" to my /etc/X11/xorg.conf file

apt-get install atitvout
xrandr --output S-video --set load_detection 1
xrandr --output S-video --set tv_standard ntsc
xrandr --output S-video --auto

This work and I was able to use my tv as a monitor however when I try to play a video file from totem or vlc all I could get was audio with no video; These files work and played fine in the CRT monitor.

anyone know how to fix this ?

In vlc under tool->preferences->video tab->output there are several selections. X11 video output works for me.

Thanks! That worked.