I'm using Openbox window manager without DE.

I'd like to get fn + [brightness up/down icon] working like it is in GNOME/KDE, but I’m looking for a lightweight solution without gnome-power-manager and similar.

I know about the xbacklight console program, but it takes a little time to adjust brightness.

  • 3
    On the few laptops I have owned, the brightness keys have never been handled by the window manager or desktop environment. Instead, I think the acpi package or the kernel supported those keys directly. Do you have all the relevant acpi packages installed and does your kernel support your hardware? – jw013 Jul 16 '12 at 19:06
  • 3
    There is a good summary of this issue on the Arch Wiki – jasonwryan Jul 16 '12 at 19:06

I use

xrandr –-output LVDS1 –-set BACKLIGHT 5

Or values other than "5".

See http://linux-software-news-tutorials.blogspot.co.uk/2011/07/how-to-change-screen-brightness-of.html


You can find a working guide on this webpage. You have to have installed the xbacklight program, on Fedora 18:

sudo yum install xbacklight

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