2nd display in B & W
 

I bought a new HP dv9812 notebook PC that comes with the NVidia GeForce Go 7150M graphics with 1071MB of SHARED memory. The best I can get on an external TV using the S-Video output is B&W. Does anyone know how to fix this?

Check the pins on the S-Video cable and make sure no pins are bent (i.e. not making contact) also what length S-Video cable are you using, and are you going direct from s-video to s-video or are you using an S-video-to-Composite(RCA) adapter? I've Had all three of these scenerios occur to me at one point or another:

Too long of a cable might not allow a strong signal to travel it's length (usually a cheaper quality cable might do this, or if the cable goes bad, yes, it does happen) Try a different cable...

Svideo-to-Composite(RCA) adapter might be faulty, if possible try a different one.

Are you going directly into a TV or through a switchbox?

Worst case scenerio is it could be your video card, I have one machine where the s-video output went bad, and like you only passes B&W, fortunately for me I had my second 'VGA' output on the card and a VGA to TV adapter.

Hope it helps,
Flip

Its the settings on your video card,
also go to nvidia's website and download latest drivers.

One thing that may help as I found a problem like this on a freinds laptop. In the display properties folder choose Settings then click on the advanced box then the Gforce Tab and Choose Video overlay settings, from the fly out window there should be a saturation setting, if this is set too low your picture will revert to black and white. Mine is set to about 114%.