Duplicate (cloning) display

Barida

Hello Thanks for the inclusion in the forum

Have only a short question, it is possible to duplicate (cloning) the display on two monitors via two graphics outputs.

Can someone describe how that works or send me a link

nadenislamarre

it is explicitly disabled while it can cause issues

Dragu

But technically no problem via use of an hdmi-splitter.

Barida

Thanks for the answer, I can test it myself synonymous activate?

Barida

Unfortunately I have with my HDMI splitter problems with my monitors 🙁

Dragu

Barida
If you have both screen on the right resolution and the right splitter 1x2, 1x4 and not 1to2 or 1to4,
this works. Just study the comments on Amazon or elsewhere to be sure what you can use.
You was never in a TV shop with 20 running television sets and the same film everywhere, it's made
like this.

gnubit-au

https://batocera-linux.xorhub.com/forum/d/1292-use-the-2-video-outputs-while-duplicating-the-image

nour

Hi,

I have a small suggestion : if you have two different graphical outputs so use both of them and avoid the splitter.
Per example, the laptop has its own screen and can be have a VGA output and an HTMI output, so you can connect a screen to the VGA and to the HDMI and reach 3 screen (tried shortly, for few sceonds on linux mint) Tutuapp 9apps Showbox.

Barida

Hello I am sorry that I am only now again announce private to do a lot.

I'll take a closer look at my problem and get an Odroid h2 and Batocera up and running.

Everything is going great so far, I just want to build it into a small case so I can not use a splitter.

If I try the contribution of gnubit-au so xrandr I always get only the output Can not open display because I'm not moving on.

I try to operate on the Odroid h2 HDMI output an internal display that goes all so far and on the display port 1.2, I have an HDMI adapter and would like to just connect a TV. But if I do that I will not get any pictures on both monitors.

Does anyone know where this is, or have I made a mistake?