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BR8041 USB Bluetooth dongle does not work with LL 5.0

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cr007:
Hello,

I cannot start Blueman with this USB dongle:

https://www.ebay.com/itm/USB-Bluetooth-5-0-Wireless-Audio-Music-Stereo-Adapter-Dongle-receiver-For-TV-PC/224280170366?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.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

--- End code ---

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


--- End code ---

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


--- Code: ---inxi -Fxzd
--- End code ---



--- 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

--- End code ---

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

Jerry:
One that mentions compatibility:

https://www.ebay.com/itm/USB-Bluetooth-5-0-Adapter-Dongle-Receiver-Wireless-Audio-Music-Stereo-TV-PC-MAC/324287998394?_trkparms=ispr%3D1&hash=item4b811229ba:g:jzwAAOSwFcdfWYoZ&amdata=enc%3AAQAFAAACkBaobrjLl8XobRIiIML1V4Imu%252Fn%252BzU5L90Z278x5ickk5v8gVt3hEWLVg%252F253w6XCWq48DXlGkR2XYwji9WMJqI46uAmEv%252FFIQ%252BCajKxLT6INc5Pct43gct0ukZYYjX8OeQS7AMMw%252B1SNEQ20MqmtNGjjGlPHQZgAsYNLtuYK6yEBbqLFGiu1pIEQ%252F6IuhWzAQMB5tGVL3Senh16UunC4afFRmr%252FPKU7gm0H2NW0DojemRJ2ITDWoV6PuRdX7gs7LAnnc3EKbaqTwiXTBp1BkjxdXZC80%252Fl4hKWf9pf8LxeJqERgCsVQe8kctl1Y0MTq9GlaX%252BWtcJU6rEphFHMoKFJan58E9f8JjQYeBbz237bC69NjwB7y26CiIQtEiCnwHh6kE2Q2w1Xn3Ni4lrS7IuKSaH5sMi%252BvgCT3jw1CZ9js4ii%252Bg6a6vhqfPRy2ADf54NHjnHZTYSP7KOjjlObRogWMMzO%252BPdynlgpgohE6eQJL2Mom2XVr%252BsaoY33GF9wxZRFCo8UZXRqeOar%252BSHVHfLSxIBqJG9LTrYUuQ6ujEGZF1UXl8rpy3nuYPpil9JjgA5Q29wOat5pcdrGmMVFM6p43JqpXP7n4r2JpheplIxFkotiHfzg2%252BhkhaJf8uYLw%252Bt7ZJlQn3Un1SHn8Rp4%252Fc425qEQ73udvti2QDnr7%252BwRZy5e66rZ2HDrr1VtrwDzYi7w3b%252BN2NPzFmy7%252BB661AuujQYyIonTaYFY6hph3uRHPtNdXUu%252B1skUUhjl6V0T4sV6lyRxryIEXmcd16Wz4hVuq6tYOLMkCyL4BEZssCfpBKakyBuqEGA2hli5oawuNkMfPI9OElCFG1nxTAgrxGqsCpcvYsTOoEmsdm1O2J1O2%7Ccksum%3A324287998394da03f06bdb93470197f4d683ed099b41%7Campid%3APL_CLK%7Cclp%3A2334524

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

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

WytWun:

--- Quote from: cr007 on February 08, 2021, 08:08:54 PM ---
--- Code: ---Bus 003 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

--- End code ---

--- End quote ---
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/6b36b82d715dc025163d9e9124840a07).

cr007:
Thanks guys. Just went ahead and bought the other dongle mentioned here.

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