Got a new 144hz monitor, now my 2nd monitor isn't being detected

[JackFTH]

So yea, I got this new monitor and hooked it up, it works fine, but I wanted to use my precious main monitor as my 2nd monitor, so I moved it and replugged it but it just won't detect a signal. Windows 10 doesn't detect it either.

My old 2nd monitor doesnt work either, I've checked all connections, different wires etc etc, DVI to GPU doesnt work, DVI to mobo doesnt work, VGA to mobo doesnt work etc etc. The wires are fine tho, they work on the monitor that does work.

I am hella confused why they dont work, I appreciate any help given, I need them both because I stream quite a lot and it's my main source of income. I cant stream without them both working unfortunately.

Greetings Jack

 

[hang-the-9]

Need to list exactly what you are using, you did not say what monitors you have and what video card you are using. If you have an add-on video card, the motherboard video is probably disabled, so you need to connect both monitors to your card.