When we mirror both are main screens.
I wonder if you meant to extend the desktop?
I have a new Asus pc with AMD video. I want to use HDMI out to my tv mirroring my PC monitor, So I plug in to both sources and the TV has become the main screen - there seems to be no way to make it recognize that I want my PC monitor to be the main screen and have it mirrored on the TV.
I have gone through the identify and detect and all that but nothing changes. I did this on an old Win7 and it was so easy - the settings stayed even after I upgraded to Win10. But Win10 is making me pull my hair out in frustration.
I contacted ASUS support and they told me to do it through the video software but I got the same result. ASUS then considered the matter closed and have not responded to my pleas for help.
Can anyone here maybe help me figure this out?