BR8041 USB Bluetooth dongle does not work with LL 5.0

[cr007]

Hello,

I cannot start Blueman with this USB dongle:

https://www.ebay.com/itm/USB-Bluetooth-5...2749.l2649

I have been unable to use it. Seller says it's supposed to be plug&play.

When I run

Code:

sudo lsusb -v | grep -i bluetooth

I get this output:

Code:

can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
Bus 003 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
  bDeviceProtocol         1 Bluetooth
  idProduct          0x0001 Bluetooth Dongle (HCI mode)
      bInterfaceProtocol      1 Bluetooth
      bInterfaceProtocol      1 Bluetooth
      bInterfaceProtocol      1 Bluetooth
      bInterfaceProtocol      1 Bluetooth
      bInterfaceProtocol      1 Bluetooth
      bInterfaceProtocol      1 Bluetooth
      bInterfaceProtocol      1 Bluetooth
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable

How do I solve it? It's an old computer:

Code:

inxi -Fxzd

Code:

System:    Kernel: 5.4.0-65-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Xfce 4.14.2 Distro: Linux Lite 5.0 LTS
           base: Ubuntu 20.04.2 LTS (Focal Fossa)
Machine:   Type: Desktop System: Hewlett-Packard product: HP EliteDesk 800 G1 SFF v: N/A serial: <filter>
           Mobo: Hewlett-Packard model: 1998 serial: <filter> UEFI: Hewlett-Packard v: L01 v02.65 date: 07/13/2015
Battery:   Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard K330 charge: 100% (should be ignored)
           status: Discharging
           Device-2: hidpp_battery_1 model: Logitech Wireless Mouse M215 2nd Gen charge: 100% (should be ignored)
           status: Discharging
CPU:       Topology: Quad Core model: Intel Core i5-4590 bits: 64 type: MCP arch: Haswell rev: 3 L2 cache: 6144 KiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 26340
           Speed: 961 MHz min/max: 800/3700 MHz Core speeds (MHz): 1: 898 2: 898 3: 898 4: 898
Graphics:  Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics vendor: Hewlett-Packard driver: i915
           v: kernel bus ID: 00:02.0
           Display: x11 server: X.Org 1.20.9 driver: modesetting unloaded: fbdev,vesa
           resolution: 1920x1080~60Hz, 1920x1080~60Hz
           OpenGL: renderer: Mesa DRI Intel HD Graphics 4600 (HSW GT2) v: 4.5 Mesa 20.2.6 direct render: Yes
Audio:     Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio vendor: Hewlett-Packard driver: snd_hda_intel
           v: kernel bus ID: 00:03.0
           Device-2: Intel 8 Series/C220 Series High Definition Audio vendor: Hewlett-Packard driver: snd_hda_intel v: kernel
           bus ID: 00:1b.0
           Sound Server: ALSA v: k5.4.0-65-generic
Network:   Device-1: Intel Ethernet I217-LM vendor: Hewlett-Packard driver: e1000e v: 3.2.6-k port: f080 bus ID: 00:19.0
           IF: eno1 state: down mac: <filter>
           Device-2: Qualcomm Atheros AR93xx Wireless Network Adapter driver: ath9k v: kernel port: f040 bus ID: 02:00.0
           IF: wlp2s0 state: up mac: <filter>
Drives:    Local Storage: total: 465.76 GiB used: 44.47 GiB (9.5%)
           ID-1: /dev/sda vendor: Western Digital model: WD5000AAKX-60U6AA0 size: 465.76 GiB
           Optical-1: /dev/sr0 vendor: hp model: CDDVDW SN-208FB rev: HJ10 dev-links: cdrom,cdrw,dvd,dvdrw
           Features: speed: 24 multisession: yes audio: yes dvd: yes rw: cd-r,cd-rw,dvd-r,dvd-ram state: running
Partition: ID-1: / size: 456.96 GiB used: 44.47 GiB (9.7%) fs: ext4 dev: /dev/sda2
Sensors:   System Temperatures: cpu: 31.0 C mobo: N/A
           Fan Speeds (RPM): N/A
Info:      Processes: 212 Uptime: 20m Memory: 15.53 GiB used: 1.10 GiB (7.1%) Init: systemd runlevel: 5 Compilers: gcc: 9.3.0
           Shell: bash v: 5.0.17 inxi: 3.0.38

[Valtam]

Can't find anywhere on that eBay page that mentions compatibility with Linux. 'Operation System: Windows 7/ 8/ 10/ XP'

[Valtam]

One that mentions compatibility:

https://www.ebay.com/itm/USB-Bluetooth-5...%3A2334524

https://www.amazon.com/dp/B07J5WFPXX

https://www.amazon.com/dp/B007Q45EF4

[WytWun]

Code:

Bus 003 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

The device you have has many known issues arising from the fact that it almost certainly doesn't have a genuine CSR radio - this device is widely faked with greater or lesser success (search "linux usb 0a12:0001" for more detail)

Some fixes have been applied to the Linux kernel starting at v5.8.2 which try and work around many of the issues in the various fakes - upgrading your kernel to a version later than this may help (source of this info: comments to https://gist.github.com/nevack/6b36b82d7...9124840a07).

[cr007]

Thanks guys. Just went ahead and bought the other dongle mentioned here.

[Dave Burton]

Thanks guys. Just went ahead and bought the other dongle mentioned here.

Several have been mentioned. Which one did you get?