# dmesg | grep pcspkr
[3.619075] input: PC Speaker as /devices/platform/pcspkr/input/input3
[3.729041] Error: Driver 'pcspkr' is already registered, aborting...
Vous pouvez blacklister le module pcspkr en executer la commande suivante. 
# echo "blacklist pcspkr" >> /etc/modprobe.d/blacklist.conf