System > Preferences > Sound > uncheck "Play alert sounds"
You can try a reboot now .. but. Disabling the PC speaker, in favor of using external speakers, can be more tricky.
Try by opening:-
1.sudo nano /etc/modprobe.d/blacklist.conf
.. and appending the lines:-
1.blacklist pcspkr2.blacklist snd_pcsp
Reboot your Ubuntu PC.
If that doesn't cut it, open:-
1.sudo nano /etc/modprobe.d/
Sunday, November 8, 2009
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