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Google Cast: Share your screen without an app on an i3CONNECT display

This guide is for anyone using an i3CONNECT display with AllSync and a computer running Google Chrome. By the end, you’ll be able to cast Chrome tabs, media, or your entire screen to your i3CONNECT display.

Windows

Apple

Android

Compatibility

badge-check-solid-full 1.png Compatible

badge-check-solid-full 1.png Compatible

badge-check-solid-full 1.png Compatible

Touch-back

circle-xmark-solid-full 1.png No touch

circle-xmark-solid-full 1.png No touch

circle-xmark-solid-full 1.png No touch

Depending on your device, the cast feature might be called ‘Screencast’ or ‘SmartView’.

Chrome.jpg

Before you start

  • Make sure your computer and the i3CONNECT display are on the same Wi-Fi network.

  • You’ll need:

  • Open the AllSync display app by pressing on Subtract.png Present on the home-screen / side-bar.

    Electric Aqua Light UI.jpg

Cast a Chrome tab

If you’re on a Mac with macOS 15 or later, give Chrome screen access in your system settings before casting.

  1. Open Chrome on your computer.

  2. Click the More menu ellipsis-stroke-vertical-regular.png at the top right.

  3. Select file-arrow-down-regular.png Cast, save, and share 

  4. Then select screencast-regular.png Cast….

  5. Choose your i3CONNECT display from the list.

  6. To stop casting, click the Cast icon screencast-regular.png next to the address bar and select “Stop casting”.


Tip: On Cast-enabled sites (like Netflix), use the screencast-regular.png Cast button in the video player for the best quality and performance.

Learn more about Cast-enabled sites.

Screenshot 2026-03-30 at 10.04.21.png

Pin the Cast button for quick access

  1. In Chrome, click the More menu ellipsis-stroke-vertical-regular.png >  file-arrow-down-regular.png Cast, save, and share >  screencast-regular.png Cast….

  2. When the Cast button screencast-regular.png appears in your toolbar, right-click it and select “Always show icon”.

Cast your entire screen

  1. Open Chrome.

  2. Click the More menu ellipsis-stroke-vertical-regular.png >  file-arrow-down-regular.png Cast, save, and share >  screencast-regular.png Cast….

  3. Click Sources > Cast screen.

  4. Select your i3CONNECT display.

When casting your whole screen, audio may play on your computer instead of the display. For audio on the display, cast a tab instead.

Cast music or video files

  1. Open Chrome.

  2. Drag and drop your media file into a Chrome tab, or while in Chrome use:

    • Windows: Ctrl + O

    • Mac: command  command-solid.png  + O

  3. Click the More menu ellipsis-stroke-vertical-regular.png >  Cast, save, and share > Cast….

  4. Select your i3CONNECT display.

Troubleshooting

  • Display not found? Double-check both devices are on the same Wi-Fi network.

  • No sound on the display? Try casting a tab instead of your whole screen.

  • Performance issues? Use Cast-enabled sites for higher quality and less computer load.

  • Still stuck? If casting fails or you can’t see your display, see this article:
    Fix Google Cast issues in AllSync