No Brightness control in kde

Question

I just reinstalled my arch. During KDE install, we have multiple ways to install KDE.

plasma (install the whole KDE)

Plasma-meta(meta pack)

Plasma-desktop( it Just provides desktop and nothing else. Minimal install).

Last time I went with 1st option, but this time i choose 3rd for a minimal install. And logging in almost i sorted everything except

brightness control

Hotkeys are not working for brightness.

If i install whole KDE(1st option ), everything works fine, but with 3rd, Many were missing like network and other. Somehow i managed to sort everything except above two. In settings, there is no option to control brightness. Any idea which package should i install from the whole Plasma Package for brightness and hotkey.

Earlier Audio control and the network was not working. So I installed plasma-nm plasma-pa

And now they are working fine.

Now i unable to guess the required package for brightness control.

https://www.archlinux.org/groups/x86_64/plasma/

This is the whole plasma pack. From this bunch can anyone guess which package among those 44 would be for brightness control and brightness control hotkeys.

I want to minimal install to don't want whole pacman -S plasma.

Solution

I found your question since I was looking for exactly the same. So I went thorugh the list of the plasma packages.

The screen brightness adjustment is part of power management in KDE. I guess that you don't have the Power Management option in your System Settings under Hardware?

You need to install the powerdevil package.
In terminal just do:
sudo pacman -S powerdevil
Just restart and you should be good to go. (This will enable and start the Power Management service on startup)
You can adjust the brightess when clicking on the Battery Icon or through your Laptop hotkeys.
Further Brightness adjustment settings are in System Settings > Hardware > Power Management

While you're at it, if you haven't already, I'd recomend you install these aswell: kgamma and kscreen

Hope this helps

Comments

[XEROling]

It still doesn't change brightness on my KDE Neon. btw I already have powerdevil and kscreen installed (fresh neon install) but kgamma has no install candidate since kgamma5 replaced it

[XEROling]

But this worked for me