On Windows 10 and 11, you can use these steps to fix a second monitor not detected on your PC, and here's how.

You can connect multiple displays to your Windows 11/10 computer. In most cases, all the external displays have different screen resolutions. Selecting the right resolution for all displays is crucial ...

I have a lg c2 tv as my main pc display via hdmi...then I have a msi monitor via display port as my 2nd monitor. The lg c2 is always shown as monitor 2 and the msi as monitor 1. I think it's a hdmi ...