Whenever I turn on my laptop, the Bluetooth applet shows up on the system tray, and Bluetooth is enabled. I rarely ever use it however, and I'd like it to be disabled by default, to avoid battery consumption.
Is there a way for that?
These instructions will show you how to stop a program loading during start up, but this does not completely disable bluetooth.
To disable bluetooth, try these scripts at the Ubuntuforums.
This solution works on my Ubuntu 12.04 and I guess it also depends on the bluetooth stack the distribution is using. The following two commands are used to soft block/unblock the bluetooth. They are in sync with the Blueman Applet. I haven't tested other applets.
You can check the current status of your devices with: