Comment 25 for bug 1242079

This is also happening for me:

frapell@padme:~$ dmesg |grep -i bluet
[ 12.692409] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 12.760442] Bluetooth: Core ver 2.16
[ 12.760469] Bluetooth: HCI device and connection manager initialized
[ 12.760477] Bluetooth: HCI socket layer initialized
[ 12.760479] Bluetooth: L2CAP socket layer initialized
[ 12.760489] Bluetooth: SCO socket layer initialized
[ 12.778260] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 12.778265] Bluetooth: BNEP filters: protocol multicast
[ 12.778274] Bluetooth: BNEP socket layer initialized
[ 12.801231] Bluetooth: RFCOMM TTY layer initialized
[ 12.801245] Bluetooth: RFCOMM socket layer initialized
[ 12.801247] Bluetooth: RFCOMM ver 1.11
[ 13.119271] Bluetooth: can't load firmware, may not work correctly

frapell@padme:~$ rfkill list
0: tpacpi_bluetooth_sw: Bluetooth
        Soft blocked: no
        Hard blocked: no
1: tpacpi_wwan_sw: Wireless WAN
        Soft blocked: no
        Hard blocked: no
2: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
3: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

syslog output when I try to initiate discovery:

Apr 2 13:09:46 padme bluetoothd[807]: Discovery session 0x7f63e6177e90 with :1.57 activated
Apr 2 13:09:46 padme bluetoothd[807]: hci0: Start Discovery (0x0023) failed: Not Powered (0x0f)

lsusb:

Bus 001 Device 004: ID 0a5c:21e6 Broadcom Corp. BCM20702 Bluetooth 4.0 [ThinkPad]

Computer is a Thinkpad X1 Carbon

frapell@padme:~$ uname -a
Linux padme 3.11.0-19-generic #33-Ubuntu SMP Tue Mar 11 18:48:34 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Ubuntu 13.10, was working fine in previous versions of Ubuntu

"sudo rfkill unblock bluetooth" does nothing for me