Skip to content

Instantly share code, notes, and snippets.

@talhashraf

talhashraf/brightness.md

Created May 16, 2015 10:42
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save talhashraf/ce736db615d3ecd6a843 to your computer and use it in GitHub Desktop.
Save talhashraf/ce736db615d3ecd6a843 to your computer and use it in GitHub Desktop.
Download ZIP
Set default display brightness in Ubuntu
Raw
brightness.md

Setting Up Default Brightness in Ubuntu

Your default brightness is stored in

/sys/class/backlight/acpi_video0/brightness

but unfortunately, you have to set permissions to access it

$ chmod o+w /sys/class/backlight/acpi_video0/brightness

and now you can change the brightness level

$ echo 75 > /sys/class/backlight/acpi_video0/brightness

NOTE: I use 75% as my default brightness. But you can change the numbers. Cheers!

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment