Spontaneous numlock

[ab1jx]

Probably everybody has localectl since it's command line, My Debian and Manjaro both have it without installing anything special.  In Debian I see:

Code:

System Locale: LANG=C.UTF-8
      VC Keymap: n/a
      X11 Layout: us
      X11 Model: pc105

I was just booted into Manjaro and I was seeing a UK keyboard layout.  " displayed as @ was the first thing I noticed about it.

Try apropos keyboard.  or setxkbmap -query  Linux has been dealing with keymaps since there was Linux.  And some documentation is outdated too.