How Do I Turn Down the Brightness on Linux?

How do I make my brightness even lower?

Use these tips to tone down your screen brightness beyond the usual slider.
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Turn on the blue light filter for Samsung phones

1. Open your Settings app.
2. Tap Display.
3. Turn on the Blue Light Filter by sliding the toggle switch.
4. Adjust the opacity to your liking and choose to turn on now or set a schedule.

8 июн. 2019 г.

What is the shortcut key to adjust brightness?

Adjusting brightness using your laptop’s keys

The brightness function keys may be located at the top of your keyboard, or on your arrow keys. For example, on the Dell XPS laptop keyboard (pictured below), hold the Fn key and press F11 or F12 to adjust the brightness of the screen.