Help me find out how to use two screens as monitors

[Shin]

Hello, everyone.
I’ve been trying to find out how to connect my TV to my PC to use it as a monitor, I did it, but can’t do it while my main monitor is connected too as I connect my main monitor to the GPU HDMI (I guess as it led to the GPU when opening the case xD) and then saw another HDMI port which connects to my motherboard which is ASRock B450M-HDV. I tried figuring out how to make it so they both work and saw that I should enable some BIOS setting, but I can’t find it at mine, I don’t know if it’s because it’s UEFI (IDK the difference). So yea, please help me make it
Have a nice and safe day, everyone!

[hackerballs]

ummm, post your specs on what GPU you have please. Most modern GPU cards have multiple outs (hdmi, d link, etc) You don’t want to use the out on the GPU card and also the out on the MB at the same time. You would use 2 of the outs on the GPU card and configure it in Nvidia or Radeon app

[Bruce]

when add-on graphics cards are installed, the inbuilt motherboard graphics ports get automatically disabled.

[Bruce]

@Shin, do you still need help?