Bug#1000881: firmware-iwlwifi: No Bluetooth controller detected with kernel 5.15

[Salvatore Bonaccorso <carnil@debian.org>]

Control: tags -1 + moreinfo

On Tue, Nov 30, 2021 at 12:42:03PM +0100, Léo Girardin wrote:
> Package: firmware-iwlwifi
> Version: 20210818-1
> Severity: important
> 
> Dear Maintainer,
> 
>    * What led up to the situation?
> Kernel upgrade from 5.14.0-4 to 5.15.0-1
> 
>    * What exactly did you do (or not do) that was effective (or
>      ineffective)?
> Open the Bluetooth window in Gnome preferences to pair my laptop with
> an external device. 
> 
> Also, enter `show` in bluetoothctl prompt.
> 
>    * What was the outcome of this action?
> In Gnome preferences, it is written (in French) "Pas de réseau
> Bluetooth trouvé", which translates as "No detected Bluetooth network"
> (I guess).
> 
> In bluetoothctl, `show` returns No default controller available.
> 
>    * What outcome did you expect instead?
> Before the kernel upgrade Bluetooth was working fine. My laptop has an
> Intel AX200 wireless controller that requires firmware-iwlwifi. Wifi
> is still functionning as usual.
> If I reboot and select in Grub the previous kernel 5.14.0-4, Bluetooth
> is working again.

I suspect this is the same as #1000403, please can you retest with
5.15.5-1 in unstable (and 5.16~rc3-1~exp1 from experimental)?

Regards,
Salvatore