How to turn your Chromebook into an external monitor

by Joseph K. Clark

The best Chromebooks are generally affordable, well-built, and easy-to-use for general productivity tasks, whether you’re a student or you’re working from home. I’ve been using a Chromebook as my primary device for the past month or so, and I keep finding new ways to eke out even more productivity from it. One recent (to me) trick that I discovered is turning my Chromebook into an external monitor. Mind blown! I’ll show you how to use the $10 Duet Display app to turn your Chromebook into an affordable, portable, and valuable second monitor for your PC or Mac.

Products used in this guide

 external monitor

How to use Duet display from your PC or Mac desktop

  1. Download Duet Display for your Mac or PC from duetdisplay.com.
  2. Start the installation process and create an account.
  3. Agree to the terms of service.
  4. Click on the Profile tab on the left navigation menu and click the checkboxes for which notifications you want to receive if someone tries to use your Duet app/account.
  5. Click the checkbox to enable Screen Sharing.
  6. Since you’ll be projecting your desktop screen to a Chromebook, click on the Android icon in the top left corner.
  7. Decide whether you want to connect to your Chromebook from a wired or wireless connection. (I’m going to use wireless here).
  8. When your desktop PC/Mac discovers your Chromebook, click the blue link to click to connect wirelessly.

  9. Click on the Settings tab on the left navigation menu to Adjust your Display Settings.
  10. Here you can click the checkbox to Mirror your Display and play with the resolution and quality.
  11. Click on the Quit App tab from the left navigation menu when you are ready to exit.

Now you’ve got Duet configured on your desktop PC, let’s take a look at what you need to do to set it up on your Chromebook.

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