Comment 9 for bug 1126108

I have the same problem on my system. Using rfkill I have a sony-bluetooth and a hci0 devices, the latter only existing if the former is not blocked. These are the three possible scenarios:

1) Physical switch on, bluetooth on
Behavior: correct
The indicator is shown regularly.
rfkill:
1: sony-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
3: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

2) Physical switch on, bluetooth off
Behavior: wrong
There is no indicator in the panel, though it is needed to soft unblock the bluetooth.
rfkill:
1: sony-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no

3) Physical switch off
Behavior: uncertain
There is no indicator in the panel, as it can't be used to switch the bluetooth on. However it may be useful to notify the presence of a bluetooth adapter.
1: sony-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: yes