https://forums.freebsd.org/threads/how-to-set-the-initial-brightness-in-x11-or-what-are-xf86monbrightness-doing-exactly.90943/
Solved - How to set the initial brightness in X11, or what are XF86MonBrightness doing exactly |...
Hello, I am running FreeBSD 13.2 on Thinkpad T430s with i3wm. The function keys for regulating brightness, Fn+F8 and Fn+F9 (XF86MonBrightnessDown and Up)...