how to turn off screen mirroring on mac big sur

How to Stop the MacBook & MacBook Pro Screen from Dimmingĭisabling auto-screen dimming in older MacOS and Mac OS X versions is done as follows: Unselect the checkbox for “Automatically adjust brightness”.Next, go back to System Preferences and choose the “Displays” system preference panel.Unselect the check box next to “Slightly dim the display when using this power source”.

Choose “Battery”, then select the “Battery” option from the left side.Open “System Preferences” from the Apple menu.The MacBook, MacBook Air, and MacBook Pro will both automatically dim the screen if running on battery, or if the computer is left alone for a period of time How to Stop the MacBook Air & MacBook Pro Screen from Dimming (macOS Big Sur and newer)ĭisabling auto-dimming in modern macOS versions is done as follows: This is a two stage process based covering a few different settings, first you’ll stop the brightness changes from dimming based on power sources, and then you’ll prevent the Mac from changing the screen brightness based upon lighting conditions. If you’re not happy with these automatic brightness adjustments, here is how to disable auto-brightness features on Mac to stop the MacBook, MacBook Air, and MacBook Pro screens from dimming themselves without user input.

How to turn off screen mirroring on mac big sur