Score:1

Bluetooth stopped working after firmware update

tn flag

I was happily listening to music through a bluetooth speaker, snap asked to upgrade my firmware, and after restarting the bluetooth doesn't work.

By "does not work", I mean that on the Bluetooth tab of the Ubuntu 20.04 settings menu, it says "Bluetooth Turned Off" and pressing the On button does nothing.

On this machine, I have always had a problem with bluetooth not working after a soft reboot. I have tried a hard reboot, restarting the bluetooth service, reinstalling the bluetooth modules, and booting under a previous kernel (I'm on 5.15.0-53 and tried 5.14.0-1054). I have checked the following,

  • sudo rfkill list all, which says nothing is blocked
  • sudo systemctl status bluetooth.service, which says the service is active
  • dmesg | grep bluetooth -i elicits the following
[    2.383331] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[    2.417508] Bluetooth: Core ver 2.22
[    2.417562] NET: Registered PF_BLUETOOTH protocol family
[    2.417564] Bluetooth: HCI device and connection manager initialized
[    2.417571] Bluetooth: HCI socket layer initialized
[    2.417575] Bluetooth: L2CAP socket layer initialized
[    2.417581] Bluetooth: SCO socket layer initialized
[    5.763262] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    5.763266] Bluetooth: BNEP filters: protocol multicast
[    5.763272] Bluetooth: BNEP socket layer initialized
[   14.381028] Bluetooth: hci0: Execution of wmt command timed out
[   14.381036] Bluetooth: hci0: Failed to send wmt patch dwnld (-110)
[   14.381054] Bluetooth: hci0: Failed to set up firmware (-110)

The posts about those errors involve either an inability to boot or imply that the problem went away on its own. Does anyone have any better ideas?

deathrayoperator avatar
tn flag
This problem continued until the next kernel update a few days later, at which point the bluetooth spontaneously started working. If you're reading this in the future, I can only recommend patience and prayer.
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