How to make keyboard shortcut for brightness adjustment work in Manjaro KDE?

Question

linux

Asus ZenBook laptop, screen brightness adjustment does not work, more precisely, the combinations FN + F5 and FN + F6 do not work, I looked in xev when I pressed no reaction. I know that you can rebind to other keys, but I want it to work with FN.

Answer 1

If xev does not detect keypresses, then perhaps there is no necessary driver for the keyboard and it works on some kind of generic.
I had the same problem with the multimedia buttons on an MSI laptop.