2 problems,

1: i cant get tv out to work properly, it will work up untill X starts, this is what i have added to the xorg.conf file

Option "TwinView"
Option "SecondMonitorHorizSync" "30-50"
Option "SecondMonitorVertRefresh" "60"
Option "MetaModes" "1280x1024, 800x600; 1024x768, 800x600; 800x600, 800x
600; 640x480, 640x480;"
Option "TVStandard" "NTSC-M"
Option "TwinViewOrientation" "Clone"

am i missing anything?

2: when have the svideo cable plugged in, i get this error message at boot

You passed an undefined mode number.
Press <RETURN> to see video modes available, <SPACE> to continue or wait 30 secs."

what is this all about? and how can i stop it from showing that?

Not sure if this will help, but there is a little program called nvtv (do they still call it that?) located on sourceforge at http://sourceforge.net/projects/nv-tv-out.

I had used this before with pretty good success. Might want to give it a try and see how it works for you.

I think though that the problem is that your television monitor does not operate at the same resolution as any of your computer monitors. It is usually something goofy (depending on NTSC or PAL), and would require the correct resolution to work.

Try the nvtv program first. It will give you TONS of information about your card, and getting it to work for you (modes, overscan (for NTSC), timings, etc).

i have tried that, this is the output

linux:/home/atlantis # nvtv
Fatal: No supported video card found.

and im using a geforce 6600 GT

I'll post a copy of my old X86 config.It is old but may help you.