Suddenly no output via HDMI/DisplayPort.. DVI to VGA works... Same problem 2 different cards

Rick74

Honorable
Jan 29, 2014
13
0
10,510
My HTPC has been working great for a year now. A few days ago, I stopped getting output via Displayport on a Diamond Radeon 7750. DVI-VGA still worked. Tried different cables, different TV's, updated to the latest 14.12 Catalyst Drivers... Still no signal via DisplayPort. When I connected both DVI-VGA and Displayport, CCC just detects the VGA device. DVI-VGA still works.

So I figured my GPU is broke. I went out and purchased a VisionTek Radeon 7750 and I still have the same issue. No output on HDMI, just DVI-VGA. However, when I connect HDMI and DVI-VGA on this card, I DO get output via HDMI, however once I reset the computer, the signal is lost on HDMI and only DVI-VGA is working again.

I am clueless on what can be the issue... Any help would be much appreciated