Screen Share Not Working on Windows

Author: Manny-26Created Sep 5, 2026Updated Sep 17, 2026
LabelsBug

Using a supported version?

  • I have searched open and closed issues for duplicates.
  • I am using Signal-Desktop as provided by the Signal team, not a 3rd-party package.

Overall summary

Screen Share button is completely unresponsive during a call. When clicked the error messages from the screenshot are logged to the terminal, but no traditional error messages occur.

Steps to reproduce

  1. Start a call
  2. Click Screen Share button
  3. Nothing ️️

Expected result

Screen Share target selection should appear.

Actual result

Button has no response.

Screenshots

Image

Signal version

8.26.0

Operating system

windows 11

Version of Signal on your phone

Android 8.25.2

Link to debug log

https://debuglogs.org/desktop/8.26.0/559e6b869d70f697966bc7ac0412ee52b95554d465593e8b4797d8e2509ac4d6.gz

Source: signalapp/Signal-Desktop