How to Troubleshoot screen flicker when screen sharing in Zoom App

This post was most recently updated on July 29th, 2022

If your screen flickers black several times while you are screen sharing in a meeting, follow these steps to troubleshoot the issue.

Note: If you’re encountering a black screen while screen sharing, and are on a Windows or Linux device, follow troubleshooting steps for black screen during screen share.

Prerequisites for troubleshooting screen flicker when screen sharing

  • Zoom desktop client for Windows, 5.7.6 or higher


Uninstall and reinstall Zoom

  1. Run CleanZoom to uninstall Zoom completely.
    Note: Use of the clean uninstaller will completely remove the Zoom client, as well as the Zoom plugin for Outlook. The Outlook add-in, Chrome/Firefox extensions, and GSuite add-on are unaffected.
  2. In the download center, download and install the 64-bit Zoom client for meetings.
  3. Once installed, open the Zoom desktop client, start a meeting with screen share, and test to see if the issue persists.

Modify the Video Rendering Method

If the issue persists after uninstalling and reinstalling Zoom, change the Video Rendering Method in the Zoom desktop client.

  1. Sign in to the Zoom desktop client.
  2. Click your profile picture, then click Settings.
  3. Click Video .
  4. Click Advanced.
  5. In the Video Rendering Method drop-down field, select Direct3D11.
  6. Restart your computer, then test the screen share again.
  7. If the issue persists, select Direct3D9 in the Video Rendering Method drop-down field of advanced video settings.

Manage Share Screen settings

  1. Sign in to the Zoom desktop client.
  2. Click your profile picture, then click Settings.
  3. Click Share Screen share-screen-button__1_.png.
  4. Under Window size when screen sharing, select the Show my Zoom Windows to other participants when I am screen sharing check box. Note: If it is not feasible due to security, skip this step.
  5. Click Advanced.
  6. Deselect the Use TCP connection for screen sharing check box.
    Continue using UDP connection for screen sharing.
  7. Under Use hardware acceleration for, deselect the Screen sharing check box.
  8. Exit out of Settings, then test the screen share again.
  9. When starting screen share, select the Optimize for video clip check box.
  10. On your computer, use Activity monitor settings or Task Manager to close all unnecessary programs to conserve system resources.