From:   bugzilla-daemon@kernel.org
To:     linux-bluetooth@vger.kernel.org
Subject: [Bug 217023] [Intel AX200] hci0: Malformed MSFT vendor event: 0x02
Date:   Fri, 10 Mar 2023 07:27:42 +0000
Message-ID: <bug-217023-62941-j2S6p6Tj97@https.bugzilla.kernel.org/>
In-Reply-To: <bug-217023-62941@https.bugzilla.kernel.org/>
References: <bug-217023-62941@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=3D217023

Mathias Bavay (bavay@slf.ch) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bavay@slf.ch

--- Comment #2 from Mathias Bavay (bavay@slf.ch) ---
Same error on newer Intel hardware (AX210), since I've started using kernel
5.19.x (compiled by Ubuntu). My bluetooth keyboard and mouse also now need =
~1
second when the desktop is loaded before being usable. With my previous ker=
nel
(5.15.x), this error message did not appear and I could use the keyboard ri=
ght
away, without the small lag that I now experience.

$ lsusb | grep Bluetooth
Bus 001 Device 002: ID 8087:0032 Intel Corp. AX210 Bluetooth

$ dmesg | grep hci0
[   18.025550] Bluetooth: hci0: Device revision is 0
[   18.025553] Bluetooth: hci0: Secure boot is enabled
[   18.025554] Bluetooth: hci0: OTP lock is enabled
[   18.025555] Bluetooth: hci0: API lock is enabled
[   18.025556] Bluetooth: hci0: Debug lock is disabled
[   18.025557] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[   18.025558] Bluetooth: hci0: Bootloader timestamp 2019.40 buildtype 1 bu=
ild
38
[   18.026909] Bluetooth: hci0: Found device firmware: intel/ibt-0041-0041.=
sfi
[   18.026936] Bluetooth: hci0: Boot Address: 0x100800
[   18.026938] Bluetooth: hci0: Firmware Version: 132-5.22
[   19.585644] Bluetooth: hci0: Waiting for firmware download to complete
[   19.585655] Bluetooth: hci0: Firmware loaded in 1522209 usecs
[   19.585821] Bluetooth: hci0: Waiting for device to boot
[   19.612549] Bluetooth: hci0: Device booted in 26194 usecs
[   19.612617] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[   19.613943] Bluetooth: hci0: Found Intel DDC parameters:
intel/ibt-0041-0041.ddc
[   19.615693] Bluetooth: hci0: Applying Intel DDC parameters completed
[   19.618707] Bluetooth: hci0: Firmware timestamp 2022.5 buildtype 1 build
38020
[   19.865890] Bluetooth: hci0: Bad flag given (0x1) vs supported (0x0)
[   19.866093] Bluetooth: hci0: Bad flag given (0x1) vs supported (0x0)

$ uname -a
Linux 5.19.0-35-generic #36~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Feb 17
15:17:25 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

$ lscpu
Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz

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