Re: regression: kernel 6.4.x breaks scanning/pairing (but not use) of LE devices

From: Paul Menzel <pmenzel@molgen.mpg.de>
To: Bruno Pitrus <brunopitrus@hotmail.com>
Cc: linux-bluetooth@vger.kernel.org, regressions@lists.linux.dev,
	Takashi Iwai <tiwai@suse.de>
Subject: Re: regression: kernel 6.4.x breaks scanning/pairing (but not use) of LE devices
Date: Sat, 5 Aug 2023 09:31:08 +0200	[thread overview]
Message-ID: <47e6ab77-e1dd-4ede-b75d-f484b2593395@molgen.mpg.de> (raw)
In-Reply-To: <2300626.ElGaqSPkdT@bruno-beit>

[Cc: +regressions@]

#regzbot introduced v6.3.9..v6.4.2

Dear Bruno,

Thank you for your report.

Am 04.08.23 um 20:55 schrieb Bruno Pitrus:
> I am using openSUSE Tumbleweed on a Dell Precision 3551 which has a
> bluetooth adapter of ID 8087:0026 (Intel AX201). I am using a
> Logitech M575 trackball mouse which only supports Bluetooth LE.
> 
> With kernel 6.4.2 or newer, scanning for devices — using either the
> KDE gui or bluetoothctl — most of the time returns only “classic
> bluetooth” devices like computers and phones, and not the mouse. If
> the mouse was paired before, it works correctly however.
> 
> With previous kernel versions (6.3.9 and before), pairing the mouse
> worked correctly.

Are you able to bisect the regression? Please also attach the Linux 
messages. (You can also create a ticket in the Linux kernel Bugzilla [1] 
and attach everything there.)

Kind regards,

Paul

[1]: https://bugzilla.kernel.org/