I have a Triniton Wega (480i) that I'd like to use as a separate monitor for streaming VHS rips and pixely PC games. My computer is a Win11 machine with a 2080, and I just tried usb-c output of the 2080->hdmi->component converter->TV and (to no one's surprise) it didn't work. I used Nvidia's custom resolution to use settings people have suggested online, but my TV would only accept the signal before I OKed the settings then it goes back to fuzz. Does anyone have any suggestions for what I should try or change before resorting to buying a second GPU?
I've done this recently with my 3080 with great results, although using an S-Video input instead of component. I first used this cable to adapt a displayport out to VGA, then used this adapter to go from VGA to S-Video (and it also outputs composite). I found it worked quite well, although the S-Video adapter needed some tinkering to get it just right (also even though the power cable is usb, a standard pc port doesn't give enough power, so you'll need a wall wart for it or else the colour will be intermittent). It's capable of downsampling from a wide variety of resolutions, so there's no need for a custom one as long as it's the right aspect ratio, though native 480 does sound neat.