[ubuntu] Bluetooth USB Adapter not working Ubuntu 20.04 LTS

[ubuntu] Bluetooth USB Adapter not working Ubuntu 20.04 LTS

 
I bought a Hommie BT-501 USB bluetooth adapter which works with Win 10 but not with Ubuntu 20.04. Bluetooth cannot be activated in the settings as the adapter is not found, apparently due to an address conflict (see below).

Does anyone have an idea how to solve that?

sudo systemctl status bluetooth gives the following result:

bluetooth.service – Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor pre>
Active: active (running) since Wed 2020-08-05 09:50:17 CEST; 1min 48s ago
Docs: man:bluetoothd(8)
Main PID: 868 (bluetoothd)
Status: “Running”
Tasks: 1 (limit: 18881)
Memory: 2.0M
CGroup: /system.slice/bluetooth.service
└─868 /usr/lib/bluetooth/bluetoothd

Aug 05 09:50:17 eO-116-PC1-Ubuntu systemd[1]: Starting Bluetooth service…
Aug 05 09:50:17 eO-116-PC1-Ubuntu bluetoothd[868]: Bluetooth daemon 5.53
Aug 05 09:50:17 eO-116-PC1-Ubuntu systemd[1]: Started Bluetooth service.
Aug 05 09:50:17 eO-116-PC1-Ubuntu bluetoothd[868]: Starting SDP server
Aug 05 09:50:17 eO-116-PC1-Ubuntu bluetoothd[868]: Bluetooth management interface
Aug 05 09:50:26 eO-116-PC1-Ubuntu bluetoothd[868]: No Bluetooth address for index 0

So it seems due to an address problem… and Blueman-manager does not start because it doesn’t find the device:

sudo blueman-manager
[sudo] Passwort für bl:
blueman-manager version 2.1.2 starting
Failed to enable bluetooth
blueman-manager 10.18.26 ERROR Manager:118 on_dbus_name_appeared: Default adapter not found, trying first available.
blueman-manager 10.18.26 ERROR Manager:122 on_dbus_name_appeared: No adapter(s) found, exiting

Bluetooth seems activated and not blocked:

[email protected]:~$ dmesg | grep -i bluetooth
[ 12.633165] Bluetooth: hci0: RTL: download fw command failed (-110)
[ 405.995000] usb 1-9: Product: Bluetooth Radio
[ 405.999179] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[ 406.000160] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 406.000165] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761a_fw.bin
[ 406.000320] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761a_config.bin
[ 406.000352] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2
[ 406.000367] Bluetooth: hci0: RTL: cfg_sz -2, total sz 20204
[ 408.089180] Bluetooth: hci0: command 0xfc20 tx timeout
[ 416.089190] Bluetooth: hci0: RTL: download fw command failed (-110)
[email protected]:~$
[email protected]:~$
[email protected]:~$ hciconfig –all
hci0: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:581 acl:0 sco:0 events:82 errors:0
TX bytes:20534 acl:0 sco:0 commands:83 errors:0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1

Link policy:
Link mode: SLAVE ACCEPT

[email protected]:~$ rfkill list all
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

 

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1 Comment

  1. upd8
    September 25, 23:40 Reply

    Hi there,

    I got the exact same problem. Did you find a solution to this?
    That one here sadly did not work with me: https://forums.linuxmint.com/viewtopic.php?f=49&t=319260&start=20
    Btw. the chipset mentioned in the error message (rtl8761a) does not fit the one in the windows driver files ( rtl8761b_mp_chip_bt40_fw_asic_rom_patch_new.dll), which can be downloaded from the manufacturers homepage

    —————————————————————-
    sudo systemctl status bluetooth
    ● bluetooth.service – Bluetooth service
    Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
    Active: active (running) since Fri 2020-09-25 19:39:28 CEST; 4min 4s ago
    Docs: man:bluetoothd(8)
    Main PID: 3756 (bluetoothd)
    Status: “Running”
    Tasks: 1 (limit: 4620)
    Memory: 1.7M
    CGroup: /system.slice/bluetooth.service
    └─3756 /usr/lib/bluetooth/bluetoothd

    Sep 25 19:39:28 bighopper systemd[1]: Starting Bluetooth service…
    Sep 25 19:39:28 bighopper bluetoothd[3756]: Bluetooth daemon 5.53
    Sep 25 19:39:28 bighopper systemd[1]: Started Bluetooth service.
    Sep 25 19:39:28 bighopper bluetoothd[3756]: Starting SDP server
    Sep 25 19:39:28 bighopper bluetoothd[3756]: Bluetooth management interface 1.14 initialized
    Sep 25 19:39:38 bighopper bluetoothd[3756]: No Bluetooth address for index 0
    —————————————————————————
    sudo blueman-manager
    blueman-manager version 2.1.2 starting
    blueman-manager 19.45.09 ERROR Manager:118 on_dbus_name_appeared: Default adapter not found, trying first available.
    blueman-manager 19.45.09 ERROR Manager:122 on_dbus_name_appeared: No adapter(s) found, exiting
    ———————————————–
    dmesg | grep -i bluetooth
    [ 5799.005938] usb 6-1: Product: Bluetooth Radio
    [ 5799.058160] Bluetooth: Core ver 2.22
    [ 5799.058187] Bluetooth: HCI device and connection manager initialized
    [ 5799.058192] Bluetooth: HCI socket layer initialized
    [ 5799.058193] Bluetooth: L2CAP socket layer initialized
    [ 5799.058197] Bluetooth: SCO socket layer initialized
    [ 5799.080938] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
    [ 5799.082935] Bluetooth: hci0: RTL: rom_version status=0 version=1
    [ 5799.082937] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761a_fw.bin
    [ 5799.085160] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761a_config.bin
    [ 5799.085184] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2
    [ 5799.085195] Bluetooth: hci0: RTL: cfg_sz -2, total sz 20204
    [ 5799.146832] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
    [ 5799.146833] Bluetooth: BNEP filters: protocol multicast
    [ 5799.146838] Bluetooth: BNEP socket layer initialized
    [ 5801.256015] Bluetooth: hci0: command 0xfc20 tx timeout
    [ 5809.448325] Bluetooth: hci0: RTL: download fw command failed (-110)

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