After my comment yesterday I remembered I disabled bluetooth on boot via TLP. On 12.04 this worked nice, it was disabled on boot and I could enable it if needed.
Removing the line and rebooting helped, I had a bluetooth icon and I could see my paired devices.
But after turning bluetooth of in the settings I'm not able to reactivate it. (dmesg show "Bluetooth: can't load firmware, may not work correctly" after each try.)
After my comment yesterday I remembered I disabled bluetooth on boot via TLP. On 12.04 this worked nice, it was disabled on boot and I could enable it if needed.
Removing the line and rebooting helped, I had a bluetooth icon and I could see my paired devices.
But after turning bluetooth of in the settings I'm not able to reactivate it. (dmesg show "Bluetooth: can't load firmware, may not work correctly" after each try.)