Hey, I have a problem. I'm using a GTX 970 and did a hack on Sierra 10.12.4. My problem is, that I won't get a signal on my HDMI Port, I tried to use 2 monitors, on's DVI and the other HDMI. First I thought it's just because I haven't installed the NVIDA WebDriver, but I was surprised that even after the installation my HDMI Port was still not working. I know that my HDMI Port isn't broken, because I switched form Windows, where I used to work with both monitors. Also plugging-out the DVI...
Using GTX 970 no HDMI
Using GTX 970 no HDMI