It looks like the Bluetooth kernel interface died and was restarted: [ 1164.351851] Bluetooth: hci0: Execution of wmt command timed out [ 1164.351867] Bluetooth: hci0: Failed to send wmt func ctrl (-110) [ 1164.352312] Bluetooth: hci0: Opcode 0x2005 failed: -22 [ 1164.352400] Bluetooth: hci0: Opcode 0x2041 failed: -22 [ 1164.370260] usbcore: deregistering interface driver btusb [ 1164.430958] Bluetooth: hci0: Failed to claim iso interface [ 1164.430991] usbcore: registered new interface driver btusb [ 1164.481585] Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20240826151221 [ 1167.461643] Bluetooth: hci0: Device setup in 2959639 usecs [ 1167.461655] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported. [ 1167.536101] Bluetooth: hci0: AOSP extensions version v1.00 [ 1167.536111] Bluetooth: hci0: AOSP quality report is supported [ 1167.536732] Bluetooth: MGMT ver 1.23
and it looks like it's built into the MT7921 wifi card despite using "USB" internally. So this seems like a kernel bug. And to work around it you may have to try a different version of Ubuntu, or using an external Bluetooth dongle (assuming you can't easily replace the internal wifi card). ** Summary changed: - Bluetooth not showing devices + [MT7921] Bluetooth not showing devices ** Package changed: bluez (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2097139 Title: [MT7921] Bluetooth not showing devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2097139/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
