Screen brightness slider appear or disappear in Win 10 - Microsoft Community

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hi . 

i uefi firmware(bios) developer ,i  got issue screen brightness slider .

description:

when installed prue os , check device manager "general pnp monitor". see it's device stack have 'driver\acpi'. screen brightness slider appear , when don't have 'driver\acpi' screen brightness slider disappear.

i want know os how flag screen brightness slider exist or not.

thanks.

hi zhao, full tutorial on brightness settings in windows registry , setting screen brightness, click link below

https://winaero.com/blog/change-screen-brightne...

please note: in order of power options in windows appear or take effect acpi (advanced configuration , power interface) driver must loaded in device manager . . .


Windows / Windows 10 / Windows settings



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