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How to fix black screen on screen share in Ubuntu

Jan 25, 2022 · 1 min read · Post a comment
How to fix black screen on screen share in Ubuntu

During an online session, I spotted that the screen share on Ubuntu stopped working. The first thought that came to my mind was the application itself. But later I realized that no matter what app I’m using whether it’s Skype, Teams, Google Chat … the same effect affects all of them. The screen is black and the other side can only see my cursor. So I found a workaround that solved the issue.

Prerequisites

  • Ubuntu
  • sudo access

Solution

Some of the Ubuntu kernels are coming with Wayland enabled. So the workaround is to disable Wayland and enable Xorg as a display server protocol.

Step 1. Open the gnome display manager configuration file.

sudo nano /etc/gdm3/custom.conf

Step 2. Find and uncomment the #WaylandEnable=false line which will force Xorg.

# GDM configuration storage
# See /usr/share/gdm/gdm.schemas for a list of available options.

[daemon]
# Uncomment the line below to force the login screen to use Xorg
WaylandEnable=false

Step 3. Now, restart the machine and the screen share will get back to normal.

reboot

Conclusion

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