When using DisplayLink-based products with macOS, displays connected to a DisplayLink USB graphics adapter or docking station may remain blank until you log into your computer. This happens because the DisplayLink Manager doesn’t load until after login, so the dock or graphics adapter cannot send the necessary information to the displays beforehand. This problem can be resolved by installing the DisplayLink Login Screen Extension for the DisplayLink Manager. This extension enables the external screens to be available on the login screen prior to the app loading after logging into your account.
To install the Login Screen Extension:
- Expand the DisplayLink Manager by clicking on its icon in the menu bar at the top of your screen
- In the app, click the download button in the DisplayLink Manager to download the Login Screen Extension.
- The Login Screen Extension will download. Open the downloaded file to begin the installation.
- Follow on-screen instructions and grant any necessary permissions.
- After installation, your connected displays should show video output once your Mac is booted, even before login.
