===== Disable PC Speaker =====
See [[https://www.thinkwiki.org/wiki/How_to_disable_the_pc_speaker_(beep!)|here]]... runthis:

  sudo modprobe -r pcspkr snd_pcsp

and/or add these to **/etc/modprobe.d/blacklist**

  blacklist pcspkr
  blacklist snd_pcsp