Disable Ubuntu System Beep!

If you’re like me, you’re probably quite annoyed with the system beep in Ubuntu. Luckily, there’s an easy fix:

To disable it temporarily:

1. In Terminal (or the console), enter: “sudo rmmod pcspkr”
2. You should not hear the system beep until your next system reboot.

To disable it permanently:

1. In Terminal (or the console), enter: “sudo nano /etc/modprobe.d/blacklist”
2. At the end of the file, enter a new line “blacklist pcspkr”
3. Type Ctrl+O (to save the file), then Ctrl+X (to exit nano)
4. After your next system reboot, you should no longer here the system beep.

Thanks to Turning Off The System (hardware) Beep : Linux Tutorial for the info!