Sunday, January 19, 2014

Having trouble with laptop brightness settings on Ubuntu or Fedora?

Simple, yet effective method. Has been tested on many older HP and Lenovo systems.

1. Open the file /etc/default/grub and look for GRUB_CMDLINE_LINUX="quiet splash".

2. Change it to:
GRUB_CMDLINE_LINUX="quiet splash acpi_backlight=vendor"

3. Save the file and reboot.

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