3 Monitors the same on Windows 10?

[LilSnoop40]

hello, I am trying to make 3 monitors the same in windows 10. my laptop screen and 2 monitors, I don't see an option to make all 3 the same just duplicate 1 and 2 or 1 and 3. I got lucky once and make it happen where windows was showing 3 monitors then I did windows P and it did duplicate but i can't figure it out now.  when I did windows P it only showed 1 monitor as 1/2 and then all 3 were duplicate but it doesn't make sense as I have 3 monitors.. please advise.   

[Nick H. Supervisor]

I'm not sure what a use-case scenario would be for this, but that's none of my business and it looks like others have tried the same thing.

I found this:

Quote

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:

• right-click on unused part of display
• select "Graphics Properties"
• select "Multiple Displays"
• check "Clone Displays" then "Select one or more active displays" (i had all 3 showing) Then all 3 displays showed the same screen/image.

EDIT: Actually, I retract my comment about not understanding a use-case scenario would be. I guess you could have multiple monitors setup around a room that show the same information coming from one computer rather than having multiple cheap machines that draw the information from a singular location (your web server, for example). The cabling could get messy, but that's not for me to argue.

[LilSnoop40]

On 01/03/2025 at 14:03, Nick H. said:

I'm not sure what a use-case scenario would be for this, but that's none of my business and it looks like others have tried the same thing.

I found this:

EDIT: Actually, I retract my comment about not understanding a use-case scenario would be. I guess you could have multiple monitors setup around a room that show the same information coming from one computer rather than having multiple cheap machines that draw the information from a singular location (your web server, for example). The cabling could get messy, but that's not for me to argue.

Agreed I’ve never had the urge or need for it. A friend is trying to use this method for some home schooling for their son. 

[goretsky Supervisor]

Hello,

Just to check, what is the brand and model of the laptop, and how are the monitors connected to it?

Regards,

Aryeh Goretsky
 

[jnelsoninjax]

So I have used a program called https://www.displayfusion.com/ for dual monitors, and it says it can do more, not sure if that would exactly work for what your friend needs, but you could look into it.

[Tomo]

The laptop might only support 2 concurrent displays.

[spoeden]

There is a simple way to do this, use a monitor splitter.  Just choose the type of connection you need, connect the monitor, in the display setup choose duplicate and your done.

https://www.amazon.com/monitor-splitter/s?k=monitor+splitter