The Flickering Display
Windows 11 includes a feature designed to extend battery life on laptops and tablets called Content Adaptive Brightness Control (CABC). Unlike a standard ambient light sensor that brightens the screen in a sunny room, CABC constantly analyzes the actual images displayed on your screen. If you switch from a dark application (like Spotify in dark mode) to a bright white application (like a blank Word document), Windows 11 will automatically and dynamically shift the display contrast and brightness to try and save power while maintaining legibility. However, for graphic designers, video editors, or anyone who finds constant screen flickering distracting, this feature is highly disruptive.
Disabling Content-Based Brightness
To ensure your screen remains at a constant, predictable luminance and stop Windows 11 from automatically changing brightness based on on-screen content, you must disable the CABC feature in the display settings.
Press the Windows key, type Settings, and press Enter. Ensure System is selected in the left-hand navigation pane, then click on Display on the right. Under the “Brightness & color” section, look for the main Brightness slider. Click the small arrow on the right side of the Brightness bar to expand the hidden options. You will see a dropdown menu labelled Change brightness based on content. Click this dropdown menu and change the setting from “On battery only” or “Always” to Off. (Note: If your device has an ambient light sensor, you should also uncheck the box that says “Change brightness automatically when lighting changes” to achieve total manual control).