I’m using Mint Linux and I noticed that the Bluetooth adapter is always on (I turned it off in the previous session). I’m using Bluetooth from time to time, but I don’t like to see it on when I don’t need it. Besides, it wastes battery.
You can turn it off per session (as I did), but next time it’s right back on which annoys me. As I can see, I’m not the only one who is affected with this.
The solution is set InitiallyPowered parameter to false.
sudo nano /etc/bluetooth/main.conf
Search for the entry:
InitiallyPowered = true
and change the value to:
InitiallyPowered = false
Next time you boot, it should be down.
In case this doesn’t help, try to turn off bluetooth service by adding “/etc/init.d/bluetooth stop” inside /etc/rc.local file (before the “exit 0” line)