I have a laptop with Manjaro XFCE and I damaged my
F3 keys, which operate the brightness of the display (up and down respectively) while holding the
xfce-power-manager works fine, and I can use the slider on the bottom bar, but I would like to know if I can remap brightness to other keys. I haven't been able to find a solution for now.
I tried instaling light package, as I saw in another reply, and using:
light -U 20
decreases the brightness as expected, but it has to be done as root, so my idea to remap that command to another key combination, doesn't work, because it doesn't have privileges.
Any idea? Thanks!