I purchased a new x34 predator monitor for use with my gaming PC, but i also have my mac pro next to my gaming pc since i share monitors. I can get hdmi to work with my PC and laptop, but i get no video with the mac pro. The mac pro is fully updated in latest software and running the original amd 512gb video card that came with it. I am able to get a video when i connect my mac pro to my old 27 monitor (the one i replaced the new one with) but im unable to get my mac pro to output any video to the new monitor, it acts as if it cant detect the monitor. I'm also using a dvi to hdmi adapter since the raideon card doesn't have an hdmi port on it. I tried a pram and smc reset and neither worked, tried multiple hdmi's and still nothing.