When using keyboard's keys to adjust brightness I'm only getting 10 values (levels) of screen brightness. Meanwhile using Xfce plugin for brightness, I can fine-tune brightness.
However I want a highly adjustable brightness level.
Is there any way to change brightness level of adjustment to "finer steps" (let's say 30 steps) using Fn+key in Xfce ?
Has this actually been answered yet? I just found a way to do this, albeit by using the <super> key instead of <functions>. Please note, this also works perfectly for Peppermint Linux as well. I know this because it's what I use and love. Since it's a combination of XFCE and LXDE, I'm positive it'll work for both DEs.
First, you absolutely need to install the Light package available on GitHub here:
https://github.com/haikarainen/light
(If you're using Arch, it's available in the AUR as light or light-git.)
Once that's completed go into your keyboard settings and make new keyboard shortcuts for the following commands and shortcuts. Now just because I have selected the shortcuts that I did, does not mean anything. If you want to use something else, go for it. I opted to use the key because I could not get my XFCE to recognize that I was holding the button while trying to set the shortcut. You might have better luck.
I'm going to use this format for the shortcut and command:
Shortcut A | Command A
Shortcut B | Command B
etc. | etc.
I'm also going to leave out the <___> from "super" because I don't feel it's necessary to keep typing those characters each time. You'll know what I mean when I type "super", right?
(Please note, that the capitalization does seem to matter. "Up" will work in a shortcut; meanwhile "up" will not._
The commands I'm going to use are "light -A 5" and "light -U 5". They translate to "Brightness Up by 5" and "Brightness Lower by 5". That gives you a total of 20 steps of brightness to work with. If you want to use a different number, go for it. I would suggest you stay away from numbers smaller than 5, though. I am also going to use "light -S 100" and "light -S 5". They translate to "Set Brightness to Max" and "Set Brightness to Min".
Anyway, here's the shortcut and commands:
super + Up | light -A 5
super + Down | light -U 5
super + shift + . | light -S 100
super + shift + , | light -S 5
OR
super + > | light -S 100
super + < | light -S 5
Feel free to add any other shortcuts you feel you'd use frequently!
Please let me know if this works for you! I'll definitely appreciate any feedback :)
There is an open feature request for this here:
https://bugzilla.xfce.org/show_bug.cgi?id=12062
It is not too hard to make the changes and recompile xfce4-power-manager by yourself from the source. My specific version was here:
http://archive.xfce.org/xfce/4.10/src/xfce4-power-manager-1.2.0.tar.bz2
Unpack it, cd to the directory, type ./configure at the prompt and get the missing packages (e.g. sudo apt-get install xfce4-panel-dev) then ./configure again.
Eventually it will be happy. Then type make. If it's still happy then type make install and reboot. Voila, you've got more brightness levels.
