I need to connect a USB Bluetooth adapter but missing btusb

General system Kernel, boot, graphics & hardware
1

lsmod | grep btusb

zero…

What can I do?

2

What kernel are you using?

Post output of uname -r

3

Is bluetooth enabled ?
https://discovery.endeavouros.com/audio/bluetooth/2021/03/

4

Enabling bluetooth is also an important part, but that won’t make the btusb kernel driver appear.

5

uname -r
7.0.14-arch1-1

6

Have you done any modifications to this kernel?

7

no

8

Try to do modprobe btusb so the module loads. This should do it.

9

Thanks

sudo modprobe btusb
[sudo] Mot de passe de ober :
ober@eos ~ $ lsmod | grep btusb
btusb 86016 0
btmtk 32768 1 btusb
btrtl 32768 1 btusb
btbcm 24576 1 btusb
btintel 73728 1 btusb
bluetooth 1204224 5 btrtl,btmtk,btintel,btbcm,btusb

10

Mark my message as solved if you’re done with this. Do sudo systemctl enable --now bluetooth to enable bluetooth.

11

But I still don’t see the USB Bluetooth adapter.

12

Post the output of lsusb

13

lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 003: ID 046b:ff01 American Megatrends, Inc. Generic Hub
Bus 002 Device 004: ID 046b:ff10 American Megatrends, Inc. Virtual Keyboard and Mouse

14

Do you know adapter model?

15

lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 003: ID 046b:ff01 American Megatrends, Inc. Generic Hub
Bus 002 Device 004: ID 046b:ff10 American Megatrends, Inc. Virtual Keyboard and Mouse
Bus 002 Device 005: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

16

Thanks, I will try to find compatibility.

17

Thanks, now I can see the adapter and find the headphones.

18

Nice, mark the post that fixed it as solved so it’s more discoverable.

19

I can see the headphones, but I can’t hear any signal or audio signal from them yet. Maybe I need special drivers?

20

Have you checked that the correct audio output is selected?