Arch Linux

Gradient

Member

Registered: 2013-05-19

Posts: 101

screen brightness

When I use Fn keys or when I use xbacklight -inc 40, the following file is modified : /sys/class/backlight/acpi_video0/brightness, but the screen brightness is not changed.

If however I change /sys/class/backlight/intel_backlight/brightness the screen brightness change according to the number I write.

How can I make Fn keys or xbacklight -inc 40 actually change the screen brightness (/sys/class/backlight/intel_backlight/brightness) ?

Last edited by Gradient (2013-06-07 02:41:30)

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: screen brightness

On my system I have to use acpi_osi="!Windows 2012" but some report that using acpi_osi=Linux also works. https://wiki.archlinux.org/index.php/In … ter_resume.

Gradient

Member

Registered: 2013-05-19

Posts: 101

Re: screen brightness

I did this to make my Fn keys work.

Super-Nathan

Member

Registered: 2012-05-19

Posts: 23

Website

Re: screen brightness

Wiki this, I recently added a fix!

https://wiki.archlinux.org/index.php/In … ter_resume.