I just got an Asus pg279q and I'm trying to hook it up with display port. I have an MSI gtx 1080 gaming x. I have plugged it in, and it says "DisplayPort NO SIGNAL" . when I put an HDMI cable in, it works, but the DP doesn't. I have turned off the optimized power whatever in nvidia control panel. And turnt my desktop and monitor both of and on. Nothing is working. Please help