Bluetooth: não carrega firmware, pode não funcionar corretamente -ubuntu -12.04

Question

Ubuntu 12.04  Bluetooth não está pesquisando um dispositivo

dmesg | grep Blue  
[   11.005902] Bluetooth: Core ver 2.17
[   11.005919] Bluetooth: HCI device and connection manager initialized
[   11.005978] Bluetooth: HCI socket layer initialized
[   11.006323] Bluetooth: L2CAP socket layer initialized
[   11.006328] Bluetooth: SCO socket layer initialized
[   11.387477] Bluetooth: can't load firmware, may not work correctly
[   13.394719] Bluetooth: hci0 command 0x1003 tx timeout
[   18.867503] Bluetooth: RFCOMM TTY layer initialized
[   18.867515] Bluetooth: RFCOMM socket layer initialized
[   18.867521] Bluetooth: RFCOMM ver 1.11
[   19.461578] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   19.461582] Bluetooth: BNEP filters: protocol multicast
[   19.461593] Bluetooth: BNEP socket layer initialized

com lsusb

lsusb
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0a5c:21d7 Broadcom Corp. 
Bus 001 Device 004: ID 0c45:6473 Microdia 

    

Answer 1

Isto irá obter o seu firmware

wget https://www.dropbox.com/s/9ryy3ir1tby6wrf/fw-0a5c_21d7.hcd
sudo cp fw-0a5c_21d7.hcd /lib/firmware/
sudo cp fw-0a5c_21d7.hcd /lib/firmware/brcm/
sudo cp fw-0a5c_21d7.hcd /lib/firmware/brcm/BCM43142A0-0a5c-21d7.hcd

E então recarregamos o módulo btusb

sudo modprobe -r btusb
sudo modprobe btusb

E agora verifique o dmesg para ver se o firmware está carregado ou tem erros

dmesg | tail

Isso pode mostrar outro erro de carregamento de firmware se o seu kernel estiver esperando um nome de arquivo diferente