Comment 10 for bug 38848

I have the same problem here; I spent a good few days trying to find some way to turn off the internal speaker just to get around the issue - except that there isn't a way to do it (even in the BIOS).

It would be nice if there was a global switch in "System > Preferences > Sound" to turn this off. Right now my machine beeps when it shuts down, beeps when I autocomplete, beeps when I run off the top of a man page, beeps all over the place in vim... Lots of beeping. My laptop speaker is pretty beefy too, so the whole neighbourhood can hear my lack of vim experience.

...this wasn't really a problem on my desktop, I just yanked out the mobo connectors. :)