Comment 7 for bug 1056947

I am observing similar behaviour. I experienced a strange quirk: when BT is turned of and my laptop has been in sleep/hibernate mode I have exact the same behaviour as you describe: when BT is switched on I cannot see any devices and the switch is off in the control center. When I put my laptop into sleep mode and log in again, while leaving the BT indicator switched on, BT suddenly works like a charm again: I can see devices and switch it on/off with both the indicator as well as in the control center.
I am able to reproduce this every time I try.