Most likely the analog video path on the card is interrupted on the red and green signal.
Post pictures of the card - especially the area around the VGA connector - and we can have a look if anything looks bad.👍
My money is on missing inductors.

I'm attaching some pictures of the board

The card looks visually OK (at least what I can tell), try spraying the inside of the VGA connector with some contact cleaner (de-oxid) and then stick back and forth the VGA cable inside and out a few times, then retry.

I'm not 100% certain because the flash makes things a bit hard to see but I think L1 & L2 used to be populated. Also fits the issue you describe.
You can most likely replace the inductors by connecting the pads with just some wire.
You'll lose whatever filtering or image optimisation they provide but it'll probably not be a relevant issue.

Good luck!👍😃

Edit: Compared the pics to the ones here: http://www.vgamuseum.info/index.php/cpu/item/ … -voodoo-banshee
The inductors are definitely missing. I'm certain this is the problem.

Yeah, those inductors are required for proper image. You can simply short them, they are there only for EMI reasons and bypassing them improves image sharpness at high resolutions so it is something I do on all my cards.

I made a bridge, and it worked. Thanks guys

Rikintosh wrote on 2021-11-12, 02:27:

I made a bridge, and it worked. Thanks guys

Great! Thanks for the conclusion!😃👍