Hello,
Please reset screen preferences and check if the issue persists:
- Unplug the dock and restart your machine to make it operational again.
- Download fixing script from our website: Reset macOS display persistence.
- Unpack the archive, so that you have ResetDisplayPrefs.command in your Downloads folder.
- Run Terminal and execute these commands to run the script:
cd ~/Downloads
chmod +x ResetDisplayPrefs.command
sudo ./ResetDisplayPrefs.command
- The script has to be run with administrator privileges, this is required to forcefully delete defective system settings. Type in your password and press enter.
- The script will display list of*display-related settings*files that will be deleted and will ask for confirmation before proceeding.
- After confirmation the script will delete those files, forcing MacOS to recreate them from scratch.
- After the script finishes it will ask you to reboot your machine. You can plug in your dock after reboot and check if the issue persists.