My son has a gaming pc with a new NVidia video card and running Windows 10 I believe and we have just purchased an ultra wide gaming monitor for his birthday.
He wishes to keep his AOC existing monitor and have 2 monitors up and running and to extend the display and not mirror.
We have connected both via HDMI using I think the term is a HDMI splitter purchased from Amazon.
We have updated the Nvidia drivers as suggested and ensured all the cables are connected but when we go to Settings and additional display it does not detect the second monitor and the display is mirrored with no option to extend.
Searched on the web for half a day with no real suggestions. I use 2 monitors at work without issue so cannot explain to him why it will not detect the 2nd display.
Any help would be greatly appreciated. Thanks.