I'm running a setup with 1 monitor and 1 computer with an RX470 where they are connected with 3 cables: DVI Dual Link, HDMI and DP. Both Windows and the AMD software correctly detect these connections – as 3 monitors. I switch between the input type via a button on my monitor. The problem should be the same with 3 different monitors and any connection types.
Windows allows me to:
- Disable any of them.
- Extend any of them.
- Duplicate any 2 of them.
However, I want to duplicate all 3. I read a bit around other sites and it seems to be a limitation of Windows 10, but I didn't find a definitive source. Some suggest that you have to use additional hardware like a splitter.
How to duplicate 3 (or more) displays?
Best Answer
This worked on my MSi laptop in WinVer 1809, using (1) the built-in display, (2) an Acer display via a DP & VGA adapter, and (3) a Samsung TV via HDMI: