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Open the Settings app from your Start menu or Start screen, select “System,” and select “Display.” Click or tap and drag the “Adjust brightness level” slider to change the brightness level.
To change the brightness on an external monitor, use the buttons on it. The Brightness slider appears in action center in Windows 10, version 1903. To find the brightness slider in earlier versions of Windows 10, select Settings > System > Display, and then move the Change brightness slider to adjust the brightness.
I am try to make a program that control the bright of Linux OS, but I need to know how to control the monitor backlight just using terminal commands? I need to be able to increase, decrease. And also dim screen (and return undo dim) if it is possible too.
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