I3wm macbook pro - need help / guidance

[Zircon34]

Welcome to the forum!

You could try this in your i3 config file? Works for me on lenovo laptops.

@Zircon34

– Additional useful fixes

6. make F5 and F6 brightness buttons work in .config/i3/config

bindsym XF86MonBrightnessUp exec xbacklight -inc 10
bindsym XF86MonBrightnessDown exec xbacklight -dec 10

edit: on Feb 2021 EOS iso, had to install this for thinkpad t490s

sudo pacman -S xorg-xbacklight