[ArchLinux]開機時啟動Num Lock

X.org

If you use startx to start your X session, simply install the numlockx package and add it to your ~/.xinitrc file.

Install numlockx:

# pacman -S numlockx

Add it to ~/.xinitrc before exec:

#!/bin/sh
#
# ~/.xinitrc
#
# Executed by startx (run your window manager from here)
#

numlockx &

exec your_window_manager

參考來源：https://wiki.archlinux.org/index.php/Activating_Numlock_on_Bootup