https://github.com/64j0/linux-screen-brightness

Simple script to control multiple screen brightness on Linux
https://github.com/64j0/linux-screen-brightness

linux screen-brightness shell-script

Last synced: 28 days ago
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Simple script to control multiple screen brightness on Linux

• Host: GitHub
• URL: https://github.com/64j0/linux-screen-brightness
• Owner: 64J0
• Created: 2023-12-03T13:46:10.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2023-12-03T13:46:30.000Z (over 1 year ago)
• Last Synced: 2025-04-01T14:31:01.544Z (about 1 month ago)
• Topics: linux, screen-brightness, shell-script
• Language: Shell
• Homepage:
• Size: 1.95 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.org

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README

        
#+TITLE: Linux terminal - Screen brightness changer

#+AUTHOR: 64J0 

When working with multiple monitors, it's often hard to keep both brightness

synced, which is annoying and probably bad for the eyes health (need to check

this later).

Some projects that aim to solve the same problem:

+ https://github.com/WinEunuuchs2Unix/eyesome

+ https://github.com/LordAmit/Brightness

With this in mind, I decided to start exploring how to control the screen

brightness through terminal on Linux. This repository holds what I found most

effective to my case.

** Script

#+BEGIN_SRC bash :tangle screen-brightness.sh :tangle-mode (identity #o744)

  #!/bin/bash

  set -euo pipefail

  # must be a float within 0.0 - 1.0 range

  BRIGHTNESS_LEVEL="${1:-1.0}"

  function main {

      echo "Using BRIGHTNESS_LEVEL: ${BRIGHTNESS_LEVEL}..."

      

      xrandr --listmonitors |\

          grep -E -o '\s\w+(-1)' |\

          xargs -I '{}' xrandr --output '{}' --brightness "${BRIGHTNESS_LEVEL}"

  }

  main

#+END_SRC