Troubleshoot MacOS Screen Share
Blank Screen when shared
Tharinda Lasika
Last Update há 2 meses
Mac Screen Sharing Permissions
When your presenter is on a Mac, and when he/she shared the screen, sometimes, it may not appear and others may see a white/blank screen. The indications are as follows.
- The preview is not appearing in the AV Controls panel for him/herself
- Others are seeing a blank/white screen
This guide helps to fix the problem.
Changing Mac Screen Sharing Permissions
To change these preferences on your Mac, choose Apple menu > System Preferences > click Security & Privacy Select Screen RecordingClick the Padlock button at the bottom left to open the options for editingSelect the checkbox next to an app to allow it to record your screen (i.e. Safari or Google Chrome)If the app is not listed, add the app using the '+' button and make sure it is checked
Note: Deselect the checkbox to turn off access for that app later on if neededLock the permissions using the padlockRestart the browser. Removing and Adding the App Again
To change these preferences on your Mac, choose Apple menu > System Preferences > Click Security & Privacy Select Screen RecordingClick the Padlock button at the bottom left to open the options for editingRemove the added app (i.e. Safari or Google Chrome)Lock the permissions using the padlock, exit, and go to the options once more (the settings box may ask for this step by itself)Now, add the app again using the '+' button and make sure it is checkedSave the settings by locking the permissionsRestart the browser. 
