This tutorial will show you how to change default percentage of keyboard backlight brightness is applied when the system is in Energy Saver mode for all users in Windows 11.
Windows 11 supports automatically dimming the keyboard backlight when Energy Saver mode is enabled.
When Lower keyboard brightness when using energy saver is turned on, it applies a 70% multiplier by default to the keyboard backlight brightness when Energy Saver is enabled.
You can change the percentage multiplier to be applied to the keyboard backlight brightness level when the system is in Energy Saver mode, on a scale from 0 (no brightness) to 100 (no dimming).
References:
Keyboard Backlight Implementation Guide
This topic provides implementation details for keyboard devices with backlights to be controlled by the host.
learn.microsoft.com
You must me signed in as an administrator to change the percentage multiplier to be applied to the keyboard backlight brightness level when the system is in Energy Saver mode.
Here's How:
1 Open Registry Editor (regedit.exe).
2 Navigate to the key below in the left pane of Registry Editor. (see screenshot below step 3)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Lighting\Backlight3 In the right pane of the Backlight key, double click/tap on the BacklightEnergySaverMultiplier DWORD value to modify it. (see screenshot below)
If you don't have a BacklightEnergySaverMultiplier DWORD value, then right click on an empty space in the right pane of the Backlight key, click/tap on New, click/tap on DWORD (32-bit) Value, type BacklightEnergySaverMultiplier for the name, and press Enter.
4 Select (dot) Decimal, type in a number between 0 (no brightness) to 100 (no dimming) for the keyboard backlight brightness percentage you want applied when using energy saver, and click/tap on OK. (see screenshot below)
The default value is 70.
5 Close Registry Editor.
That's it,
Shawn Brink
Last edited:
