Learn how to configure a second display on a Mac to expand your workspace and increase productivity with this step-by-step guide.. You can also decide whether to extend or mirror your Mac desktop across your external displays. If you have a third-party display, check the documentation that came with the display to get more information on the display's video ports and cables, and to make sure you're connecting the display according to the manufacturer's guidelines.
:max_bytes(150000):strip_icc()/007-how-to-set-up-dual-monitors-on-a-mac-2fb97248394e426f9f4fb3a5c8c1cf71.jpg "How to Set Up Dual Monitors on a Mac")
Want to know how to extend screen on Mac or duplicate it? Check out these simple tricks, plus some bonus troubleshooting tips for connection issues.. To instantly mirror your Mac display to an external monitor, press Command + F1. Press the same keys again to return to the original display setup.