Auto Brightness Issue (Content Adaptive Brightness / DPST)

[brighntess]

I am using an HP laptop with Intel UHD Graphics (12th Gen).

I am facing an issue where the screen brightness automatically changes based on screen content:
- Dark screen → brightness decreases
- White screen → brightness increases

This happens even after:
- Adaptive brightness is OFF in Windows
- Power settings are normal
- Latest Intel graphics driver installed
- Intel Graphics Command Center does not show any power-saving or DPST option

Temporary fixes like reinstalling the driver work only briefly, but the issue returns after restart or Windows update.

This behavior is very distracting and affects usability.

Please help with a permanent solution to disable Intel DPST (Display Power Saving Technology) or content adaptive brightness.

System details:
- Laptop: HP 15s-fq5xxx
- Processor: Intel i3 12th Gen
- Graphics: Intel UHD Graphics
- OS: Windows 11

[Venom21]

Can be different location. Check if this helps:

https://support.microsoft.com/en-us/windows/change-display-brightness-and-color-in-windows-3f67a2f2-... 

[Csik]

That was a new place to turn that crap off, thanks! Mine was enabling when on battery, and it then don't turn off when on AC.

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In Display settings, select Brightness , then set the Change brightness based on content drop-down as needed

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I've always resorted to doing the Registry hack from way back when I had an MS Surface laptop, changing FeatureTestControl to 1210 under Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000