Composite video from an older laptop?

although I can get an image on my composite monitor you can see that there is more than one image and it's out of sync. I tried adjusting the display settings and that seems to put the frequency way off. I used to have a video board on an old DOS computer that had an RCA jack on it and it was very handy. Is this still possible to do? I think that I read somewhere that anything ten ears older or less should be able to support this. I don't know how old my laptop is but i don't think that it's over ten years. Thanks, Lenny

Ebay has lots of converters like that.

I have not tried them,but they don't cost much to try. Here is one for $ 10.

They are usually from $ 10 to $ 30.

The laptop has to supply sync-on-green for a simple adapter to work. Can you interrogate the video output mode, or change it, to make interlaced 60 Hz video with sync-on-green?

More flexible (expensive) adapters actually include frame buffers, and require a power supply.

Used Extron scan converters show up on Ebay for reasonable prices. VGA to S-Video or composite are common models. There is a steady stream of older hardware being pulled out during upgrades to digital and mixed video systems.

Can you explain this? I must be getting old because I don't get it.

Thanks, Pat

Over unity = Perpetual Motion = unending revenge. ;-)

he VGA jack on the back of my laptop and somehow end up with composite or S video out? I tried an adapter that my son said he had used to do this in t he past. It plugs into the RGB jack in the back and it has two short cables out of it. One has an RCA female jack on the end of it and the other has a n S video female. I didn't try S but although I can get an image on my comp osite monitor you can see that there is more than one image and it's out of sync. I tried adjusting the display settings and that seems to put the fre quency way off. I used to have a video board on an old DOS computer that ha d an RCA jack on it and it was very handy. Is this still possible to do? I think that I read somewhere that anything ten ears older or less should be able to support this. I don't know how old my laptop is but i don't think t hat it's over ten years. Thanks, Lenny

I thought "perpetual motion" was a theoretical quantity, kind of like the s quare root of -1. Lenny

Thanks. I either never knew or forgot the phrase "over unity". I did a quick Google search and found many references to it so clearly the problem is my memory (or lack thereof).

Over unity means that you get back more effort, than you put in. ;-)

It's no big deal. I love bad jokes, and I like to share them. :)