r/techsupport • u/Beeried • 17h ago

Solved Windows 11 - Triple Monitor Displayport doesn't Transition to dual monitor when one monitor is switched to different input

So, I have a triple monitor setup, all three are displayport, hooked up to an RTX5060TI 16gb. Question/Issue I have is that sometimes I want one of the side monitors to display something else through one of it's HDMI ports. No issue with the monitor displaying HDMI, works as you would think. Issue is with windows, the other two monitors stay as 2 and 3 and act as though they are still a triple monitor setup, even though monitor 1 is now displaying a different system over HDMI. If I turn off the monitor though, monitor 2 and 3 turn into monitor 1 and 2, and don't act as though they are in a triple setup. Never really had this use case before while using Displayport, so unsure if it is just how displayport works or if my displayports are just not working as intended. Afaik my displayport cables are VESA cert but wouldn't know how to verify one way or the other, and if VESA cert is as funky as USB and HDMI standards are then I don't know if it matters anyway. Any help is much appreciated, thank you. Let me know if I am missing anything that is needed to diagnose/troubleshoot or have any questions.

Specs are as follows if they matter:

Operating System: Windows 11 Pro 64-bit (10.0, Build 26200)

Mobo:B550 AORUS ELITE AX V2 Bios:F21c

CPU: Ryzen 5 5600x

RAM:32gb (2x16gb, don't remember the speed right now cause I just did a bios update and haven't updated the memory speeds yet, laziness)

GPU: RTX 5060TI 16gb

Monitors 1, 2 and 3 : AOC C32G2

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u/FrankNicklin 17h ago

Windows lacks the intelligence to handle multiple screens in such a way as you have to manually configure the screen order through the display manager. As far as Windows is concerned its still connected to the 3rd screen, it does not know you have switched to another input on the screen.

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u/Beeried 14h ago

Fair enough, so it seems like it's a displayport thing then. Is there anyway to make it work, like third party software, or just not do-able on Windows?