There was an option under Bluetooth preferences in 11.04 to easily hide the icon, but in 11.10, there's a little bar near the top right corner called Visibility. I'm assuming that's what hides or shows the Bluetooth icon, but I can't move it. Everything is locked in my Bluetooth preferences, and I see no unlock button.
Any ideas?
I believe the correct way, as per the Desktop Application Autostart Specification, is to create user-specific configuration overriding the system default.
cd ~/.config/autostart
cp /etc/xdg/autostart/bluetooth-applet* .
echo "Hidden=true" | tee -a bluetooth-applet*
For 11.10
Alt+F2 and paste the following line:
Search for bluetooth-applet.desktop and bluetooth-applet-unity.desktop files and delete them (I recommend you to backup them first).
Restart and that's all.
Your bluetooth device needs to be plugged in or turned on for you to edit those settings.
If you want the icon gone altogether, either disable bluetooth in your BIOS (for built in bluetooth devices) or remove the adapter (if you use one).
I have found out that you can run a certain command that will show all items in the 'Startup Applications' window. Then in there you can set the bluetooth from enabled to disabled. It also allows you to turn off other autostart applications that you might not want. Like Gwibber, I hate gwibber. Anyway the command to show the autostart applications is :
sudo sed -i 's/NoDisplay=true/NoDisplay=false/g' /etc/xdg/autostart/*.desktop
Copy/Paste and then open the 'Startup Applications' and make the changes. Be careful some of those are very useful.
for Ubuntu [-MATE] 16.04: