Built my entire pc and booted just fine. Stepped away for a bit and the screen went to sleep mode and wont wake up. DP doesn't work. Read a bunch and no real fixes yet. switch cables, toss HDMI in and that works. Eventually got DP back working no idea how or what combo of restarting, pulling HDMI cable and reinserting. Sleep mode and its gone again. been back at it 2 hours and nothing. It seems that it thinks there were/are two monitors as well even though I only have the one. When I try to switch to DP it doesn't show anything, when I swap back the Nvidia control panel states "G-Sync display detected" so it seems to be a monitor issue. It wont install the DP driver either, just HDMI as it didn't detect a DP monitor when checking.

ASUS ROG STRIX GeForce GTX 1070 Ti
X470-f gaming motherboard

Please help, this monitor is useless right now.