We are having multiple users reporting that they are not able to do Screen Sharing when they initiate the call the button is greyed out and says \"Screensharing is disabled\".

Scenarios where it works:

If Someone else initiates the call then the user who had issues in this case the receiver of the call, can share screen.

They can initiate a screen share then unmute, works.

Device OS: Windows 10 20H2 Enterprise

Seems to be random but started between Friday and today..

We are having multiple users reporting that they are not able to do Screen Sharing when they initiate the call the button is greyed out and says \"Screensharing is disabled\".

Scenarios where it works:

If Someone else initiates the call then the user who had issues in this case the receiver of the call, can share screen.

They can initiate a screen share then unmute, works.

Device OS: Windows 10 20H2 Enterprise

Seems to be random but started between Friday and today..

I had this same issue with a few users in our corporation.

I was able to see that the user could ONLY screen share during an incoming call or just by screen sharing directly instead. I checked to see if I could sign them into my Teams app installed on my laptop and the issue was no longer present. I also checked the web version of Teams and the issue was not present either. Below was the following issue on their own laptop and their install of Teams:

After trying to delete cache, edit the registry, uninstall/reinstall the Teams program, reboot the machine, etc. I was able to do the following to get it working which didn't make sense since the cache was being physically deleted in the AppData folder:

1. I signed the user out of Microsoft Teams and signed into my account. The issue was removed.

2. I signed back into the user's account and the issue was no longer present.

3. With another user I just signed them out and back in and the issue was removed.

During the 2nd step, I did receive the following message after trying to sign them back in:

When clicking on \"try again\" the program closed out and reopened. The user was able to screen share after that with no issues when initiating the call.

vRickEBK 

Try signing out of the application, then signing in with someone else's account and the signing back into the affected account.

Wilfrano 

I'm also experiencing the same issue. Teams screen sharing is disabled.

First I thought it is related to my Ubuntu upgrade from 20.04 to 22.04.

Because with newer Ubuntu versions the default display server is now Wayland and no longer X11/X.org.

But I tried some solutions I found in some articles on the web, but nothing helped.

Afterwards I found this report here where also Windows user are affected.

What I already tried:

1.) Disable Wayland safe mode:
global.context.unsafe_mode=true

2.) Disable Wayland completely with below configuration:
vi /etc/gdm3/custom.conf
WaylandEnable=false

3.) Or only start a desktop session directly with X11/X.org without disabling Wayland completely

4.) Instead of using Teams as a Debian package (*.deb), I also tried the Snap package, but this also did not help.

vRickEBK We are experiencing the exact same issue too. We are on a Windows environment and using the desktop app.   It doesn't appear to be any rhyme or reason when screen share is greyed out during a call and get the message \"Screensharing is disabled\".  So far it's only affecting some users in the office.  

We tried the steps mentioned earlier to see if that resolves it, but didn't work.

I'm certain it's a global issue with Microsoft that they haven't posted yet on their site.