[Bug 215167] Bluetooth: hci0: command 0xfc05 tx timeout

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=215167

Chaim Eliyah (chaimeliyah@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |chaimeliyah@gmail.com

--- Comment #46 from Chaim Eliyah (chaimeliyah@gmail.com) ---
+1 AX200 

```
07:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723]
(rev 1a)
        Subsystem: Intel Corporation Wi-Fi 6 AX200NGW [8086:0084]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
```

```
[   25.711840] Bluetooth: Core ver 2.22
[   25.711860] NET: Registered PF_BLUETOOTH protocol family
[   25.711861] Bluetooth: HCI device and connection manager initialized
[   25.711864] Bluetooth: HCI socket layer initialized
[   25.711866] Bluetooth: L2CAP socket layer initialized
[   25.711869] Bluetooth: SCO socket layer initialized
[   25.788390] iwlwifi 0000:07:00.0: loaded firmware version 66.f1c864e0.0
cc-a0-66.ucode op_mode iwlmvm
[   27.783372] Bluetooth: hci0: command 0xfc05 tx timeout
[   27.783378] Bluetooth: hci0: Reading Intel version command failed (-110)
[   28.785728] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   28.785731] Bluetooth: BNEP filters: protocol multicast
[   28.785733] Bluetooth: BNEP socket layer initialized
```

```
celiyah@darkunicorn:~$ sudo systemctl status bluetooth
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor
preset: enabled)
     Active: active (running) since Sun 2023-02-26 16:43:43 CST; 12min ago
       Docs: man:bluetoothd(8)
   Main PID: 28973 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 76959)
     Memory: 668.0K
        CPU: 38ms
     CGroup: /system.slice/bluetooth.service
             └─28973 /usr/lib/bluetooth/bluetoothd

```

```
celiyah@darkunicorn:~$ bluetoothctl 
Agent registered
[bluetooth]# scan on
No default controller available
quitetooth]# 
```

It's popping up in Ubuntu forums e.g. 
https://askubuntu.com/questions/1448731/bluetooth-not-working-no-controller-available

| Reloading `btusb` module several times makes it working.

Any specific steps for this? I have not been able to get it to work. Issue
persists despite reboots incl. hard power off/on. This happened suddenly.

```
celiyah@darkunicorn:~$ uname -a
Linux darkunicorn 5.15.0-56-lowlatency #62-Ubuntu SMP PREEMPT Wed Nov 23
09:50:07 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
celiyah@darkunicorn:~$ lsmod | grep bt
btusb                  61440  0
btrtl                  24576  1 btusb
btbcm                  24576  1 btusb
btintel                40960  1 btusb
bluetooth             708608  12 btrtl,btintel,btbcm,bnep,btusb
```

(I believe the bleeding cutting edge 23.04.1 is the only available bunty
release with a 6 kernel line. Could be wrong.)

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