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In both

  • MS Teams (Microsoft Teams Version 1.5.00.10453 (64-bit)) and
  • Zoom (Version: 5.10.4 (2845))

on Ubuntu 22.04 LTS (42.0, Wayland) no screen shows up after clicking on "share screen".

Hardware: Lenovo ThinkPad X1 Yoga 3rd, Mesa Intel® UHD Graphics 620 (KBL GT2), Intel® Core™ i7-8550U CPU @ 1.80GHz × 8 connected with two monitors via Thinkpad Thunderbolt 3 dock.

Is there a configuration issue, or is screen sharing not supported?

JulianKarlBauer
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  • It would be good if these were two separate question posts, as the solution for Zoom may not be the same as the solution for Microsoft Teams. – Flimm Jul 20 '22 at 08:43
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    Newer versions of Zoom seem to have fixed this. – Flimm Jul 20 '22 at 08:45
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    Going back to Xorg which is regularly proposed as a solution to the above problem is pretty much like telling someone to ditch their car and go back to horse and carriage if they have a flat tire. One of the reasons screen-sharing works under X and not under Wayland is that X has no concept of security. Every X application has full access to the frame buffer and thus sees everything. Disabling security -- however crude a solution that may be -- does the trick for now and you are not worse off than with Xorg and at least you can disable it for the duration of your screen sharing session only. – momesana May 23 '22 at 09:01
  • Finally some common sense. I think the best solution for now is just to use Zoom from the browser (and complain to Zoom that this is ridiculous, Ubuntu 22.04 is recent but Wayland has been around for years now). Note: to make screen sharing work in Chrome it's sufficient to enable WebRTC PipeWire support in chrome://flags. – korg91 Jun 22 '22 at 14:56
  • This isn't an answer as it doesn't tell you how to do something useful (screen sharing) that every other OS, which also have security models for their windowing systems, allows without issue. – siride Aug 13 '22 at 17:35
  • You tell us about the security without proposing a reasonable solution. Using your analogy, what makes the car better than horse if it's flat tire cannot be fixed! – Елин Й. Aug 23 '22 at 09:11

4 Answers4

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These applications have not been updated for Wayland, which is why screensharing does not anymore work for the time being.

You may want to switch to Xorg to regain this functionality. To do so, log out, then, before entering your password, click the cog on the bottom right and log in on "Ubuntu on Xorg".

Other workarounds include relaxing security settings in Gnome Shell or using a browser based version of Zoom in a browser that supports Wayland.

vanadium
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    Thank you! Simple solution, after switching to "Ubuntu on Xorg", screens can be shared in both MS Teams and Zoom. – JulianKarlBauer Apr 28 '22 at 08:46
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    You can disable Wayland's safe mode by pressing `ALT`+`F2`, type `lg` and do `global.context.unsafe_mode=true`. I've written a small Gnome Extension which does this for you: https://github.com/julianpollmann/zoom-wayland-gnome-extension – polyte May 13 '22 at 12:11
  • I particularly liked the second solution. Is there something similar on KDE? – Bruni May 20 '22 at 06:39
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    how the hell you quick that command prompt (lg) ? – Antonello Nov 03 '22 at 14:22
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Screen sharing is disabled as Ubuntu starting from version 21.04 started depending on Wayland instead of xorg.

To fix this issue easily:

a. To login with xorg for user session:

  1. before login there's a setting icon on the bottom left, click on it and choose Ubuntu

b. To disable Wayland and use xorg only:

  1. Open your terminal and write sudoedit /etc/gdm3/custom.conf

  2. Uncomment the value waylandEnabled=false -- just remove the #

  3. Press Ctrl+O then Enter then Ctrl+X

  4. Reboot your computer.

This will trigger Ubuntu to fall back to Xorg and then you can share the screen again.

When rebooting you need to manually select the "Ubuntu with xorg" at the login screen. At the bottom right of the screen there should be a gear. Click on it to select the x11 version.

karel
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Hossam
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  • No need to change `/etc/gdm3/custom.conf`. It is sufficient to log in on Xorg (last two lines of this post). – vanadium Sep 09 '22 at 08:20
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Other answers disabling Wayland works, but for anyone for which dropping Wayland just to enable screensharing isn't an option:

the ms teams web client does work in Ubuntu 22.04.

R. Oosterholt
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I got the same issue I was able to solve it from below approach

  1. Log out from your current account.
  2. You will get a setting icon in bottom-left corner
  3. Tap on setting icon
  4. Select Ubuntu xorg
  5. Now Login in again and try to share screen. Hope it's works.
Sabir Mondal
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