I'm trying to get a Dell Inspiron 7000 (ATI Rage Pro LT video chip) to display the MythTV screens properly on an NTSC TV via the laptop's s-video out port. I setup KnoppMyth with the Auto-Install "TV" option to default to 800x600 and everything went fine. I can see the MythTV menus etc on the laptop's screen.

However, when I boot with the S-video cable plugged into the TV I can see the Linux pengiun and all the text messages displayed on bootup fine on the TV, but as soon as it goes into the X-windows environment I get a scambled (looks scewed) display. I have tried editing The XF86Config-4 file as per the instructions but it doesn't seem to make any difference.

Any ideas?

Have you tried:atitvout?

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cesman

When the source is open, the possibilities are endless!

well you will need to search for the correct options for ati tvout. the instructions for the XF86Config file are for the nvidia cards.