Screen share show black screen after upgrade from Ubuntu 20.10 to 21.04

Question

Screen share shows just a black screen after the upgrade from Ubuntu 20.10 to 21.04. It was working fine until 20.10.

Tried in Google Chrome, Firefox, etc. all of them shows just the black screen. It is not related to the browser.

Any idea how to fix this?

Does this answer your question? Ubuntu screen sharing on Google Chrome not working — Khyar Ali, Apr 22 '22 at 07:06

Greenonline · Answer 1 · 2023-04-03T22:50:43.667

51

An alternative solution, from:

sudoedit /etc/gdm3/custom.conf

Uncomment the line

#WaylandEnable=false

and save the change. This will enable the Xorg display manager.

Then either

sudo systemctl restart gdm3

Or just reboot the system.

This reportedly works on the following versions:

18.04
20.04
21.10
22.04 LTS
22.10

Note: When switching back to X11, make sure that you have the package xserver-xorg-input-all installed - otherwise your mouse and keyboard will not work.

edited Apr 03 '23 at 22:50

answered Aug 07 '21 at 13:42

Greenonline

2,081

4

This is the only solution that worked for me. My system is running Ubuntu 21.10 with an nvidia graphics card. – Peter Drinnan Jan 06 '22 at 14:01
4

This works for on 22.04 LTS too – Waqas May 30 '22 at 11:28
5

This works for me also, ubuntu 22.04LTS – lerichard_v Jun 13 '22 at 15:27
1

This works for me also, ubuntu 22.10 – sundowatch Jul 07 '22 at 17:02

score 18 · Answer 2 · edited May 31 '22 at 08:05

18

Looks like Ubuntu 21.04 defaults to Wayland - when I switch to Xorg, screenshare works fine.

If anyone wants to try this, these are the steps:

In the login screen, click the setting icon
Choose "Ubuntu On Xorg" instead of "Ubuntu"
Now login

Screenshare should work now.

edited May 31 '22 at 08:05

Greenonline

2,081

answered May 28 '21 at 12:35

yottabrain

943

score 17 · Answer 3 · answered Feb 08 '22 at 05:15

17

If you are using Chrome and prefer to use Wayland and do not want to switch back to Xorg, activate the following flag in the browser:

chrome://flags/#enable-webrtc-pipewire-capturer

From the flag description:

When enabled the WebRTC will use the PipeWire multimedia server for capturing the desktop content on the Wayland display server

answered Feb 08 '22 at 05:15

4ndt3s

291

It worked for me. Thanks. – Towfiqul Islam May 29 '22 at 21:13
1

I tried @greenonline's solution and it worked, but my touchpad is not working. so I use your suggestion and solved blank screen issue and also my touchpad is working. I'm using ubuntu 22.04 – Adiyat Mubarak Aug 08 '22 at 08:18
Does something like this exist for Firefox too? – GRASBOCK Nov 13 '22 at 11:03
@GRASBOCK - That seems like a good question to post – Greenonline Dec 29 '23 at 23:41

Screen share show black screen after upgrade from Ubuntu 20.10 to 21.04

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