Turns out that it may be a power issue. It just happened again after leaving my pc running overnight. I returned to it doing the same thing this morning. To fix I powered all the way down, turned off power to the psu, unplugged cables to each monitor, and unplugged cable to the power supply. Let everything sit unplugged for 30 seconds before putting everything back together. I went back to using display port 1 and powered back up. Everything is working again.I think 2 out of 3 of the display ports on my 1070 have died...Is this normal? I've had it since 2017. My hdmi port still rocking, but my monitor just went to "no connection detected" I tried switching cables, switching inputs and concluded my monitor works fine. I switched to the 3rd display port on my 1070 and it works. If the 3rd port dies is that an excuse to upgrade?