HDR Monitor Setup Guide

If you have an M1 or M2 Macbook Pro, or an external HDR display, this guide is for you.

Broaden Range

Low Peak SDR Brightness = HDR Headroom

This is counter intuitive, but HDR displays look best a low brightness, or more specifically, a low SDR whitepoint. In other words, a white webpage should NOT be burning your eyes, it should look like a piece of paper on your desk.

The difference between the peak white in SDR and the peak white in HDR is what makes HDR beautiful.

When done correctly, this will NOT diminish your peak HDR whitepoint

To Broaden:

  • Mac:
    • Lower your OS brightness to 50% - for external displays, this requires MacOS Sequoia [Fall 2024]
  • Windows
    • go to System Settings / Display / HDR and lower the “SDR Brightness”


To Test:

  • Enable Experimental Features
    • Chrome:  chrome://flags/#enable-experimental-web-platform-features
    • MS Edge: edge://flags/#enable-experimental-web-platform-features
  • Go to the Headroom Test here and try for 2 stops: Greg Benz HDR


  • Instagram/Threads is rolling out support
  • Youtube has support
  • Facebook has support if the content was from Instagram/Threads
  • Gain JPGs have limited support
  • AVIFs are most widely supported

Example HDR Content

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