Hello guys. Maybe you can help me with this.

I have a laptop (HP Pavillon dv6720) running Ubuntu 11.10 with Intel Graphics Media Accelerator X3100. The VGA output works great, but everytime I plug my tv using the s-video out, nothing appears on my tv screen. Either way, Ubuntu detects I have connected another screen, and I can choose the TV resolution, but the screen remains black.

I tried changing the resolution, tried the cable in a laptop with Windows and it worked, tried connecting my laptop to a different tv, and it didn't worked anyway.

Any ideas?