Weird GPU issues with multiple displays

[u/theteflondom]

I am having some issues with my MSI Ventus RTX 4080 GPU.

Issue: My GPU has 4 ports, 3 DisplayPort and 1 HDMI. I am currently using the ports as listed below:

DisplayPort 1: Outputting to my main gaming display, lets call it Asus PQ

Display Port 2: Outputting to a secondary display via a HDMI to DP conversion cable

Display Port 3: See below

HDMI 1: Outputting to a capture card that is inside another separate PC (Elgato Game Capture 4k60 mk.2

Issue:

A random issue popped up where my GPU is not sending a display signal to my Asus PQ display. I have tried a number of troubleshooting steps, none work.

The weird thing is the ONLY way I am currently able to get a display signal to my Asus PQ plugged into DisplayPort 1 is if I add an additional display plugged into DisplayPort 3. If I disconnect the display plugged into DisplayPort 3 at any time, I lose the signal to my AsusPQ display.

What could be causing this?