Zoom split screen not working? Here’s how to fix it

With Zoom Share Screen, you can share presentations, iPhone screens and more. It has made virtual meetings and conferences more convenient and practical. But, Zoom sharing screens not working during an important webinar can be very terrifying.

You may have encountered screen flickering or automatically paused screen sharing. Or, worst-case scenario, a black screen while screen sharing that ruined your Zoom experience. So, in this article, we will guide you with several fixes to fix the problem.

Why isn’t the Zoom share screen working?

Common reasons why your Zoom share screen is not working are:

  • Unable to meet bandwidth requirements for screen sharing
  • Using Hardware Acceleration
  • Automatic graphic change under Windows
  • Zoom bugs and issues

How to Fix Zoom Share Screen Not Working?

First, before jumping on the fixes, try logging out of your Zoom account and logging back in. Then you can test screen sharing to see if it works.

Additionally, you can update your device to the latest software version. This fix worked and solved the screen splitting issue for many users. However, if the problem still persists, follow the given fixes.

Connect your device to a strong network

Screen sharing may not work if your device is connected to a poor quality Wi-Fi network. You may experience feature buffering when sharing videos or content with participants. The recommended bandwidth for the split-screen video thumbnail is 50-150 kbps (down).

Thus, you must connect your device to a strong network. You can restart the router to improve performance. Also, if the internet is still lagging, try connecting to another network. You should be able to share a screen in your Zoom meeting.

Limit sharing screen

If you still cannot meet the Share Screen bandwidth requirements, you can limit the number of screen shares to frames per second. This should resolve the screen sharing error.

Follow the steps below:

  1. Open the Zoom desktop client and log in to your account
  2. Click on your profile picture in the upper right corner and select Settings
  3. Go to Screen sharing and click on Advanced basically
  4. On Limit your screen sharing to people, click the Number set limits
    Limit screen sharing on Zoom

Allow access to use microphone and camera

Screen sharing may not work if you have denied microphone and camera access for the Zoom app on your device.

You can check if you have granted access by following the steps below:

On Mac

  1. Go to Apple Menu > System Preferences > Security and privacy
    mac-security-and-privacy
  2. Go to confidentiality tab and click Cameras
  3. Check the box for Zoom
    enable-zoom
  4. Follow the same process to the mic

Under Windows

  1. Open Settings from Windows Startup
  2. Click on Privacy > Camera
  3. Enable the toggle for “Allow desktop apps to access your camera » (Make sure the Zoom app is in the list)allow the desktop app to access the camera

On mobile

  1. Go to settings
  2. Click on Privacy > Camera
  3. Toggle the toggle to the right to Zoom
  4. Follow the same process to the mic

Enable TCP connection for screen sharing

If you’ve encountered a black screen when trying to screen share in Zoom meetings, you can enable a TCP connection for screen sharing. With this option, you can fix content display errors after screen sharing.

You can follow the given steps:

  1. On your zoom desktop client, log in to your zoom account
  2. Go to your profile in the upper right corner and select Settings > Share Screen
  3. Then scroll down and click on Advanced at the bottom of the screenadvanced split screen
  4. Check the box for Use TCP connection for screen sharinguse-tcp-connection-for-screen-sharing
  5. Try to share the screen again

Disable hardware acceleration

If you have enabled hardware acceleration on your Zoom, this might be the reason why screen sharing is not working. Sometimes there are chances that the app slows down or crashes as it saves CPU consumption during screen sharing. So disabling it is the best bet to fix the problem.

Follow the steps given below:

  1. On your zoom desktop client, log in to your Zoom account
  2. In the top right corner, go to your profile and select Settings > Share screen
  3. Then go to Advanced basicallyadvanced split screen
  4. Uncheck the box to Use hardware acceleration to optimize video sharinguse hardware acceleration

Change video rendering

If your screen flickers while screen sharing on Zoom, you can change the video rendering to fix the problem. However, you must have Zoom 5.7.6 or later on your Windows to make changes. You should be able to share the screen in meetings without any issues.

Check out the steps below:

  1. On your zoom desktop client, log in to your Zoom account
  2. In the upper right corner, click your Profile Picture Where Initial of the name
  3. Go to Settings > Video
  4. Scroll down and click Advancedmeni-zoom-advanced
  5. Then click on the Video rendering method of the drop-down field and choose Direct3D11
    enable-direct-3d11
  6. Restart your PC to save

Change GPU

By default, your Windows GPUs can switch automatically to preserve battery life. Such automatic graphics switching can lead to black screen errors during screen sharing. So you can change the GPU to solve it.

Check out the steps below:

  1. From Windows Search, go to NVIDIA Control Panel
  2. In the left panel, choose Manage 3D settings > Program Settings Tab
  3. Then locate the Zoom installation directory > Zoom > bin folder. program-settings-add
  4. Locate .exe and open it. Click on the Cpthost.exe drop twice to add
  5. Now go back to the Manage 3D Settings Page. You can see the added file under “Select a program to customize”
  6. Click on the drop-down menu of Select the preferred graphics processor in the program and choose Integrated Graphics change-processor-preference
  7. Finally click on Apply

Reinstall Zoom

If your screen sharing isn’t working on the Zoom desktop client and mobile apps, you can uninstall the app and start over. This will most likely eliminate bugs and unknown issues on Zoom.

You might know the steps to delete apps on your mobile. So, to uninstall the app on PC, Mac users can drag Zoom app from Finder to Trash. Similarly, Windows users can remove from Control Panel. You can install the latest version of the Zoom app for your device from the download center.