How to disable bluetooth on ubuntu, xubuntu and linux mint

After upgraded linux kernel to 3.11 on my xubuntu 12.04 LTS laptop, I *feel* my laptop run a bit faster, i want to speed up my laptop even further. I have tweaked my laptop heavily, but have not disabled bluetooth yet (I do not use bluetooth), so now it’s the time to do.

To stop bluetooth service

$ su -
$ service bluetooth stop

To disable bluetooth service on startup

# nano /etc/rc.local

add this line before exit 0

rfkill block bluetooth

To disable the bluetooth driver on startup

# nano /etc/modprobe.d/blacklist.conf

and add this line to blacklist.conf

blacklist btusb

To cut power source for bluetooth to run

# nano /etc/bluetooth/main.conf

Change

InitiallyPowered = true

To

InitiallyPowered = false

To remove remove bluetooth manager and all its dependencie

# apt-get remove bluez* bluetooth
# apt-get autoremove