So I usually run 3 monitors, but a couple of weeks ago my far left monitor just didn't display anything and said no connect found. I tried switching cables and the cables both worked. I then unplugged one of the two monitors that was working and the one that was not working turned on and had no issues. For reference I am using display port cables and have a 1080ti and use windows 10. I am not sure what is causing this problem, I looked on my display settings and it is showing as third monitor but it is saying it is not connected.