If you see the same thing on both displays, you should start by making sure the displays are Extended instead of Mirroring ...

How do you change your Mac’s screen resolution? It depends on whether you have an external monitor connected, but our guide makes it super clear and easy to do.

The ability to have two or more external monitors connected to your Mac in Extended Mode is a liberating screen experience, but leads to frustration when each still operates like an independent ...

Learn how to configure a second display on a Mac to expand your workspace and increase productivity with this step-by-step guide.