How to set resolution to a portion of a screen or just screen share part of one?

2026-07-21 16:28 UTC

I’ve got one of those crazy-wide screens that I usually use at 5120x1440 and it’s great. However, since I work remote, I often want to share my screen with someone on a typical 16:9 screen and the options of “tab”, “window” or “entire screen” aren’t particularly useful. I’d like to be able share either (a) a portion of the screen (half?) or (b) change my resolution temporarily to something like 2650x1440 and just share the whole screen. The problem is that as far as I can tell, (a) isn’t an option, and while I can (b) change my resolution to something 16:9, it renders wide across the screen turning effectively every pixel is a wide rectangle. It’s… hard to look at. I’m using Arch with GNOME+Wayland. Is there some way for me to do either of the above?

Replies (9)

@bjoern_tantau@swg-empire.de 2026-07-21 16:31

I’d select one window and just scale that down.

Open ##3990364
@CallMeAl@piefed.zip 2026-07-21 16:32

I always share a tab or window because then screen ratio becomes irrelevant, or am I missing something special about your setup?

Open ##3990372
@siph@feddit.org 2026-07-21 17:16

Maybe this can help. Basically you’re looking to split your screen into virtual screens. Don’t know if this will work on the fly though.

Open ##3991218
@tasankovasara@sopuli.xyz 2026-07-21 17:17

I have funky screen configurations too. What I’ve done is setup a headless screen that I view over VNC on a tablet and share that. On Wayland wayvnc can do this.

Open ##3991287
@Ftumch@lemmy.today 2026-07-21 18:32

Does your screen not have a built-in settings menu where you can turn off the stretching?

Open ##3992829
@parker@programming.dev 2026-07-21 19:44

I think I’d recommend OBS too, but I guess this is possible with an application I wrote. If you want to install it, it is available on Flathub here.

Open ##3994379
@turbowafflz@lemmy.world 2026-07-21 17:05

Use OBS to capture your screen and manipulate it however you want and then use its virtual camera feature as your webcam for the meeting. If you want both your face and screen you could easily do a facecam in the corner in obs

Open ##3995531
@Crozekiel@lemmy.zip 2026-07-21 21:33

OH - check if your monitor supports PBP - Picture by Picture. Some Ultra-wides have this functionality, and you can run two cables from the computer to the monitor (assuming you have 2 video outs) and the monitor itself will show up in the OS as two smaller monitors instead of one big one. If your monitor has this feature and you have two video outputs, it sounds like it would do exactly what you want. Also, to add to what others have said, OBS will very likely do almost everything you are wanting, but if you want to be able to have your “webcam” and “screenshare” separate I have a silly solution for you… Use OBS to get the half of the monitor you want to share piped into it, but instead of using the virtual camera, pare down everything in OBS you don’t need to see so it is basically just the preview and then in the meeting software share the OBS window. You can still use your normal webcam setup for your face, and a “screen share” option for your screen share, not limited to any windows (even though the thing thinks it is limited to OBS, but OBS sees the other windows you need and just takes up a little bit of border area). It’s silly, and it isn’t perfect, but it gets you 90% of the way there.

Open ##3996653
@SilverCode@lemmy.ml 2026-07-22 09:09

I know this doesn’t solve your immediate problem when using GNOME, but if you are desktop curious, KDE natively offers sharing a portion of the screen or even creating a whole new virtual monitor with its own resolution, wallpaper etc that you can share. So my typical workflow is to have it create a 1080p virtual monitor above my real monitors, and share that, since sharing a full 4k monitor makes it hard for people to read. Then I can show whatever I want on that monitor without worrying about exposing something from my main monitors.

Open ##4008422