USB Bluetooth adaptor stopped working after updates?

User Support
1

Qubes 4.2.4 Kernel 6.6.77-1 & Fedora 41 templates

I had a USB Bluetooth dongle (UGREEN BT5.4 Adapter) that was working absolutely great right out of the box, in both sys-usb and tested in dom0 for my audio, so I went out to buy a second dongle.
In the mean time I have received some system updates and suddenly I find that this adapter no longer works, at all, anywhere. This happened just a few days ago so something changed but I have no clue what. I have tried reloading btusb with modprobe but no joy.

Device info

usb 2-2.4: new full-speed USB device number 4 using xhci_hcd
 usb 2-2.4: New USB device found, idVendor=33fa, idProduct=0010, bcdDevice=88.91 
usb 2-2.4: New USB device strings: Mfr=0, Product=2, SerialNumber=0 
usb 2-2.4: Product: UGREEN BT5.4 Adapter

$ lsusb
…
Bus 002 Device 005: ID 33fa:0010 UGREEN BT5.4 Adapter
…

I believe the offending dmesg log messages are:

sys-usb kernel: Bluetooth: **hci0: command 0x1005 tx timeout**
sys-usb kernel: Bluetooth: **hci0: Opcode 0x1005 failed: -110**

BluetoothInserted.log (3.7 KB)

2

Error code -110 is usually related to insufficient power to the device in question.

Does the device work as expected on other machines/OSes?

3

| alzer89
March 10 |

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Error code -110 is usually related to insufficient power to the device in question.

It’s a full desktop computer system with plenty of power to spare. I have several different USB controllers and none will work with it anymore, while all other USB devices do.

This BT device was working fine even with other devices plugged in at the same time. I have since removed all other USB devices just to try and simplify the debugging process, but still no joy.

Does the device work as expected on other machines/OSes?

I would have to dig up some older hardware without Bluetooth built in to test that out.