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From:   Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Date:   Mon, 24 Jan 2022 17:13:47 -0800
Message-ID: <CABBYNZ+t+L=G-X0qt=Cnn7vUpLu2s1=purmAESnCaRvK7XtmdQ@mail.gmail.com>
Subject: Re: Commit ad383c2c6 ("Bluetooth: hci_sync: Enable advertising when
 LL privacy is enabled") breaks my MS ArcTouch mouse
To:     "Kenneth R. Crudup" <kenny@panix.com>
Cc:     Luiz Augusto Von Dentz <luiz.von.dentz@intel.com>,
        "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
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Hi Kenneth,

On Mon, Jan 24, 2022 at 11:59 AM Kenneth R. Crudup <kenny@panix.com> wrote:
>
>
> On Mon, 24 Jan 2022, Luiz Augusto von Dentz wrote:
>
> > > I'm running Linus' master (as of today, 1c52283265a462a100). With this commit in
> > > place I get no bluetooth ("hcitool dev" shows no adapters) and/or I can't see my
> > > MS ArcTouch mouse.
>
> > It would be great to have some logs, btmon, dmesg, etc.
>
> That's just it- nothing shows up in any log/dmesg; unlike when a non-MS mouse is
> detected and I get the notification from the HID layer.
>
> I even did an s/{bt}_debug/{bt}_info/g over all the files in the commit, and when
> that mouse is power-cycled it doesn't even make a peep in the logs- it's like it's
> not even being seen (vs. several lines when I use my ordinary mouse).
>
> What params should I use for "btmon" so I can send you the output?

Try something like:

sudo btmon -t

Also restart the daemon just in case and then do:

bluetoothctl> power on

> > If the adapter doesn't work this might be related to firmware loading
>
> Turns out this was a red herring; I always have the adapter.
>
> > anymore the LL privacy feature is not
> > enabled by default so I wonder if you had it enabled in userspace?
>
> Where would I go to check that?

It is enabled via main.conf, if you have not modified that shouldn't be enabled.

>         -Kenny
>
> --
> Kenneth R. Crudup / Sr. SW Engineer, Scott County Consulting, Orange County CA


-- 
Luiz Augusto von Dentz