After reading this answer, the beep command successfully makes a sound.
https://askubuntu.com/a/168628/445574
But when I print the bell character, it doesn't make any.
I've already tried: https://superuser.com/questions/615839/beep-works-but-the-bell-character-makes-no-sound
Basically, printf '\a' and echo -e "\a" don't beep.
- I have removed the blacklist pcspkr from
/etc/modprobe.d/blacklist.conf - I have entered the command
sudo modprobe pcspkr beepmakes a sound