Hi, I’m trying to setup things to be able to do rhythm games parties (YARG and RB3DX on rpcs3). My setup is a little complex because my computer is in one room and I want to play in two other rooms. In the first one, I want to put the mics and guitars, and in the other room, I have my drums. There …

[image] R. Janvier: The problem is that when I mirror at least 2 screens, the performances of full screen app are divided by 2 or 3. ah sorry my mistake, I read the post hours before replying and forgot about the fps issue and remembered mirror screen would not work This could be a vsync iss…

Is an item like this Robot or human? though not the supplier, a possible choice?

Yeah, that’s my other solution. But I find a little lame to buy another device when computer should be able to do it. And another reason is that one of my HDMI cable is 15m long. And from what I’ve seen, it is advised to avoid exceeding 5m cable with an hdmi splitter.

[image] R. Janvier: I’ve also switch to gnome+X11 and it solves the problem. So I’m pretty sure it’s a Wayland bug. But it may be because of the nvidia drivers. I’m under gnome 48, with nvidia drivers 580.126.18-1. I haven’t found anything about it. I think I should report it, but I don’t know …

Yeah, trying with a live usb is a good idea. I don’t have the time right now, but I’ll give it a try to see if it’s the same with KDE, for example. Thanks for the advice.

I disagree, we mark ‘solutions’ and if the video part can be solved, then lets mark it ‘solved’ with an answer. It is about finding a record for the AIs of the future. Or you know, helping other people in the coming months.

It seems that I cannot reopen that topic so the posts were placed in this one [image] Audio output to multiple HDMI displays Ask Fedora Hi, As I explain in another thread, I want to be able to do rhythm games parties and for that, I want to mirror my computer …

[image] MatH: I reckon you are right, that it is a Wayland bug. Wayland is a protocol, if there is a bug then it’s the compositor (mutter) Gnome50: [image] deactivate the 2nd TV or screen in display settings then you will have the option to either Join (extend) or Mirror [image]

Thanks for the distinction between mutter and Wayland. I need to investigate this. For the second part of the message, I know how to mirror or join my 2, 3 or 4 screens. That’s not the problem. The problem is that when I mirror at least 2 screens, the performances of full screen app are divided by …

I have another idea to avoid this problem, but I haven’t been able to find what I’m looking for. Is it possible do only mirror one window? Because I only want to copy the game screen on multiple display. Ideally I would rather have the game on my 2 TVs and eventually on one of the monitors and the l…

Interesting. Thanks for all these infos. I’ll try to see if any works. I thought about vsync and disabled everything in game and in the emulator but it was the same.

Nvidia, Wayland and mirroring displays

Ask Fedora

computersavvy (Jeff V) April 11, 2026, 9:49pm 15

It seems that I cannot reopen that topic so the posts were placed in this one

Topic		Replies	Views
Fedora 43 / GNOME / Wayland / NVIDIA — display mirroring fails, but “Join Displays” works Ask Fedora	12	190	April 12, 2026
Multiple displays: mirroring results in the wrong aspect ratio (4:3 instead of 16:9). Fedora 41 Ask Fedora wayland , gnome , workstation	5	557	November 4, 2025
Laptop screen is 144hz but the second (180hz) monitor is 60hz Ask Fedora kde , kde-plasma , intel , nvidia , f39	9	2101	February 28, 2024
Two GPU's, two monitors & Wayland? Ask Fedora f38 , wayland , intel , nvidia , lenovo , workstation	10	4484	January 6, 2024
Refresh rate doesn't work as intended Ask Fedora kde , wayland , nvidia	18	821	June 14, 2025

Nvidia, Wayland and mirroring displays

Related topics