[Bug 213829] Intel AX210 Bluetooth controller doesn't start from warm boot

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=213829

Kiran (kiran.k@intel.com) changed:

           What    |Removed                     |Added
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                 CC|                            |kiran.k@intel.com

--- Comment #29 from Kiran (kiran.k@intel.com) ---


(In reply to Marco from comment #27)
> (In reply to Guillaume Binet from comment #26)
> > Alright, talking with Intel directly, this patch seems to fix it for
> 5.15.2:
> > 
> >
> https://patchwork.kernel.org/project/bluetooth/patch/20211013080511.23945-1-
> > kiran.k@intel.com/
> > 
> > I have a bunch of other regressions like GPU hangs with 5.15 but at least I
> > see the controller showing up consistently warm reboot after warm reboot.
> > 
> > Can anyone else confirm it works?
> 
> Nope, running 5.15.2 and now bluetooth disappears after a reboot. This
> hasn't fixed the problem for me, it just changed behaviour.
> 
> I can confirm that the patch is present, I do see the message added for that
> patch:
> ....
> [13556.611182] Bluetooth: hci0: No device address configured
> [13556.611197] Bluetooth: hci0: Found device firmware:
> ...
> 
> But there is no bluetooth adapter available from both my DE nor from
> bluetoothctl info command.

The log "No device address configured" was present even before this patch.
https://patchwork.kernel.org/project/bluetooth/patch/20211013080511.23945-1-kiran.k@intel.com/

Now its getting printed conditionally based on the mode of the controller. Are
your sure that this patch is present in your test? As of now I can see this
patch merged only in maintainer tree but not in 5.15-rc2

Thanks,
Kiran

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