Friday, March 11, 2022

Debian Bullseyes: installing & configure brightness control on Xfce4

 

You need to install:

  1. brightnessctl
  2. grub-customizer
  3. xfce4-power-manager   

# apt-get install brightnessctl grub-customizer xfce4-power-manager   

From Applications -> Settings -> Grub Customizer

  1. Open General settings
  2. At kernel parameters append acpi_backlight=video
    for example "quiet acpi_backlight=video"
  3. Save and restart.

You can choose only one from these options:

  • acpi_backlight=vendor
  • acpi_backlight=video
  • acpi_backlight=native
  • acpi_backlight=none

You can change your brightness from Power Manager Plugin in Xfce4.

Note: after make any change, restart your Debian

Tested on

  • Asus K45DR AMD A8 Series
  • Debian 11.2
  • linux-image 5.15.0-0.bpo.3-amd64

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