I managed to find an amazing deal on a set of 50" DLP video wall “cubes” removed from a from a government installation. There were 12 in the set, but some had burn-in and other problems, and I’ve managed to produce a good solid set of 6. They are 4:3 aspect ratio sets with a native resolution of 800 x 600 and they never had a display controller - each was only ever used with composite video from traffic camera monitoring.
So, I need to find a set of three video cards each with dual VGA outputs to make a display two sets high by three wide. Each card is only going to be driving 800 x 600, so the cheapest card made will have more than enough horsepower - we’re not going to game on this. The wall will be used for a composite video input, HD tuner input and DVD playback.
I want to avoid buying more than one set of cards if I can. I’m thinking one AGP and two PCI in an older computer, or 3 PCIe cards in a newer one.
So, any Dopers done this before, and do you have a recipe that works?