If your MacBook has an HDMI port, you can directly use a standard HDMI cable. However, many MacBook models, especially those released between 2016 and 2020, and some newer versions, only include USB-C ports. If this is the case with your MacBook, you will need a USB-C to HDMI adapter to connect your MacBook to the projector. Ensure you have the correct cable or adapter before proceeding.

Connect the HDMI Cable or Adapter
Select the Projector's HDMI Input: Using the projector's control panel or remote, select the HDMI input to which your MacBook is connected. This might be labeled HDMI 1, HDMI 2, etc., depending on the projector model.
Configure Display Settings on Your MacBook: Once connected, your MacBook should automatically detect the projector and may mirror your display by default. If not, or if you want to adjust the display settings:Click on the Apple menu and select "System Preferences." Choose "Displays," then click on the "Arrangement" tab.
Here, you have a few options:

Mirror Displays: Check this box if you want your MacBook to show the same content as the projector screen.
Extend Desktop: Uncheck the "Mirror Displays" box if you want to extend your desktop across your MacBook and the projector. This is useful for multitasking or showing different content on each screen

1 question

How do I switch off the AV system?