Recently did an install on my girlfriends laptop of Ubuntu 9.04 (E1705) . Everything went really well excpet for the obnoxious PC Speaker beeping all time. So to disable this guy you need to edit the blacklist file:
sudo nano /etc/modprobe.d/blacklist.conf
Now you need to add this at the bottom so that your computer wont load the pcspkr module next time it boots:
# Damn PC Speaker is annoying
blacklist pcspkr
Restart the machine and you wont hear that obnoxious beeping anymore!
OR Remove the Module
You can also remove the module as was pointed out below. This may be a better solution because you do not have to restart and it takes immediate effect.
sudo rmmod pcspkr
Instead of restarting you can just remove the module
sudo rmmod pcspkr
Thanks
Thanks, I added it to my post!