When I turn on my bluetooth in ubuntu 12.04 it does not show any options for discovering devices or any bluetooth functions.
What should I do to show these options?
As you can see even though bluetooth is turn on(in status bar) no options are shown.
Run the Following command in the terminal..
It should than turn ON the bluetooth.
If you are using laptop than try to turn it OFF and ON,using hardware switch. Usually done with Fn + Some function key depending on your laptop.
Also If this doesn't work than install Blueman Bluetooth Manager from Ubuntu Software Center.
Run the following command (you don't need to be root)
If nothing is listed then you don't have your bluetooth adapter configured properly.
You can also
If you find it there, then considering installing rfkill, for enabling/disabling wireless devices.
If this not helps, follow this guide. It contains all the information you need for setting up your bluetooth adapter.