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gummy — Screen brightness/temperature manager for Linux/X11. More information: <https://github.com/Gitoffthe

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandbrightnessgummytemperaturecliscreenformanager

linux

Problem

How to use the gummy command: Screen brightness/temperature manager for Linux/X11. More information: <https://github.com/Gitoffthelawn/gummy>.

Solution

gummy — Screen brightness/temperature manager for Linux/X11. More information: <https://github.com/Gitoffthelawn/gummy>.

Set the screen temperature to 3000K:

gummy {{[-t|--temperature]}} {{3000}}

Set the screen backlight to 50%:

gummy --backlight {{50}}

Set the screen pixel brightness to 45%:

gummy {{[-b|--brightness]}} {{45}}

Increase current screen pixel brightness by 10%:

gummy {{[-b|--brightness]}} {{+10}}

Decrease current screen pixel brightness by 10%:

gummy {{[-b|--brightness]}} {{-10}}

Set the temperature and pixel brightness for the second screen:

gummy {{[-s|--screen]}} {{1}} {{[-t|--temperature]}} {{3800}} {{[-b|--brightness]}} {{65}}

Code Snippets

Set the screen temperature to 3000K

gummy {{[-t|--temperature]}} {{3000}}

Set the screen backlight to 50%

gummy --backlight {{50}}

Set the screen pixel brightness to 45%

gummy {{[-b|--brightness]}} {{45}}

Increase current screen pixel brightness by 10%

gummy {{[-b|--brightness]}} {{+10}}

Decrease current screen pixel brightness by 10%

gummy {{[-b|--brightness]}} {{-10}}

Context

tldr-pages: linux/gummy

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