https://bugzilla.kernel.org/show_bug.cgi?id=215768

--- Comment #16 from Luiz Von Dentz (luiz.de...@gmail.com) ---
(In reply to Damien Thébault from comment #15)
> (In reply to Luiz Von Dentz from comment #14)
> > Weird, there is still the same error
> 
> I have checked with btmon on my side, but I get the "Unknown Connection
> Identifier" only in Emanuele attachment 300921 [details] (Fedora 36 kernel
> 5.17.5 Mi Notebook Pro 2020), but not in mine (Archlinux kernel
> 5.17.5/5.18-rc6 Dell XPS 15 9510).

Sorry for the confusion, it seems I was reading the wrong file, in your case
the error is actually:

@ MGMT Event: Controller Resumed (0x002e) plen 8                               
                                                                               
                                                                               
                                                                            
{0x0001} [hci0] 14.868056
        Wake reason: Wake due to unexpected event (1)
        Address: 30-FE-A5-D9-5C-02

It seems it is being wakeup by some event, there is indeed events after:

@ MGMT Event: Controller Suspended (0x002d) plen 1                             
                                                                               
                                                                               
                                                                            
{0x0001} [hci0] 12.491034
        Suspend state: Disconnected and not scanning (1)

It doesn't seem we send any command to stop scanning so it looks like it out of
sync with respect to scanning state and on resume it does send a command to
start scanning, what could explain this is something other entity attempting to
control the scanning state.

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