I have two monitors, one is an Asus Vg248qe that is plugged in via DP and the other is some old 1650x1080 dell monitor that is plugged in via hdmi to dvi adapter (my rtx 2080 doesnt have any dvi connectors). Starting today, when I started up my computer, the 2nd monitor was the only one displaying. My asus is the main one but it didn't display. WIndows would detect it because it says I have 2 monitors but I can't change any of the settings on the first (every option is blank). I even tried changing it to duplicate displays but it says those settings wont work. I already tried plugging it back in, reinstalling drivers. The only way I get my asus monitor to work is to unplug the hdmi monitor and then it will start displaying.