S-Video out on Acer Extensa 5220

I m trying to connect a PAL TV using the S-Video out of my Acer Extensa 5220 under Opensuse 11.0.
In Sax2 i cannot find any option. Activating Dual Head Clone modus doesn t help, i presume this works only for the DSUB Monitor connector on the left side.
I ve turned on TV, connected to the S-Video Out via Scart adaptor, booted Opensuse, but there was no signal.
Anyone can help?