If you want to stop annoying PC speaker follow this simple tutorial:

1. press alt+F2 and on the run command enter “gksudo nautilus” without quotes
2. Next, go to /etc/modprobe.d and find the file blacklist. Double click on it and add this lines

#Stop PC speaker
blacklist pcspkr

3. Save the file and the speaker will be turned off.

You can do this with Terminal if you preferred text commands! Open your terminal and enter:

sudo gedit /etc/modprobe.d/blacklist

Then add this 2 lines to the blacklist and click save:

#Stop PC speaker
blacklist pcspkr

There is no need for restart. Enjoy

Tags | Howto, Linux, Tips and Tricks, Ubuntu