Our office is doing an upgrade to our PCs. We have old LCD monitors with ATI Rage LT Pro video cards. The monitor only has a DFP (a.k.a. MDR) connector. The video card has an 15-pin VGA connector and a 20-pin MDR/DFP connector. When I move these video cards over the new computers the DFP port seems not to work. The monitor just stays in powersave mode, but when I plug into the VGA connector it works fine.
We have 20 flat panels that we want to make work with the new computers, but none of the DFP connections work when installed in the new machines. At first I thought this was a driver issue, but we can't even see BIOS messages which makes me think it is something more. When I put the cards back into the old machines, the DFP port works fine. We can't afford to buy any new hardware, so I got to get these damn things to work.