Using Basic Projector Features
Monitoring and Controlling the Projector
If the projector and the notebook don’t display the same image, try the following:
On macOS 13 or 14.x:
Select System Settings, then Displays.
Select the projector, then choose the mirror option for your display from the Use as pop-up menu.
Press the + pop-up menu button, then choose a display to mirror.
On macOS 12x:
Select System Preferences, select Displays, then select Display Settings.
Select the Display Settings or Color LCD option, if necessary.
On macOS 11 or older:
Open System Preferences and select Displays.
Click the Arrangement tab and select the Mirror Displays checkbox.
Select the Display Settings or Color LCD option, if necessary.