Quick checks
- Set the macOS brightness slider to maximum.
- Try the Outdoor preset from the menu-bar app.
- Enable video-player boost for full-screen apps like VLC.
- Turn off Low Power Mode if macOS is limiting display output.
Support
Help with MaxBrightness
MaxBrightness is designed for supported XDR Mac displays. If brightness does not change, first confirm you are using a MacBook Pro or display with Extended Dynamic Range support.
Contact
For support, email support@maxbrightness.com.
Email support