linux-kernel - Fwd: Logitech G915 Wireless Keyboard acts weird on 6.6.0

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Message-ID: <6929ebbf-f2e0-4cd4-addc-1e33ecf3277f@gmail.com>
Date:   Thu, 2 Nov 2023 21:11:42 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Regressions <regressions@...ts.linux.dev>,
        Linux Input Devices <linux-input@...r.kernel.org>
Cc:     Mavroudis Chatzilazaridis <mavchatz@...tonmail.com>,
        Filipe Laíns <lains@...eup.net>,
        Bastien Nocera <hadess@...ess.net>,
        Jiri Kosina <jkosina@...e.cz>,
        LinuxCat <masch77.linuxcat@...il.com>,
        Marcelo <mmbossoni@...il.com>
Subject: Fwd: Logitech G915 Wireless Keyboard acts weird on 6.6.0

Hi,

I notice a regression report on Bugzilla [1]. Quoting from it:

> Hello,
> After upgrading from 6.5.9 to 6.6.0, my keyboard started acting really weird in its wireless mode, key actions sent are completely wrong, see video attached. 
> 
> Most keys are perceived as either E, 3 or F7, with F8 and <, as well. 
> 
> Modifier keys (CTRL, ALT, ALT GR, Shift and Super) are working normally, as well as media control keys (pause/play, previous, next, mute and sound up/down).
> 
> The keyboard works as expected if it's wired.

Another reporter bisected the regression:

> Bisected to 
> 
> 9d1bd9346241cd6963b58da7ffb7ed303285f684 is the first bad commit
> commit 9d1bd9346241cd6963b58da7ffb7ed303285f684
> Author: Mavroudis Chatzilazaridis <mavchatz@...tonmail.com>
> Date: Sun Jul 16 18:23:44 2023 +0000
> 
> HID: logitech-dj: Add support for a new lightspeed receiver iteration
> 
> The lightspeed receiver for the Pro X Superlight uses 13 byte mouse reports
> without a report id. The workaround for such cases has been adjusted to
> handle these larger packets.
> 
> The device now reports the status of its battery in wireless mode and
> libratbag now recognizes the device and it can be configured with Piper.
> 
> https://github.com/libratbag/libratbag/pull/1122
> 
> Co-developed-by: Filipe Laíns <lains@...eup.net>
> Signed-off-by: Filipe Laíns <lains@...eup.net>
> Signed-off-by: Mavroudis Chatzilazaridis <mavchatz@...tonmail.com>
> Reviewed-by: Bastien Nocera <hadess@...ess.net>
> Signed-off-by: Jiri Kosina <jkosina@...e.cz>
> 
> drivers/hid/hid-ids.h | 1 +
> drivers/hid/hid-logitech-dj.c | 11 ++++++++---
> 2 files changed, 9 insertions(+), 3 deletions(-)

See Bugzilla for the full thread.

Anyway, I'm adding this regression to regzbot:

#regzbot introduced: 9d1bd9346241cd https://bugzilla.kernel.org/show_bug.cgi?id=218094
#regzbot title: Logitech G915 Wireless Keyboard key event only detects few key codes
#regzbot link: https://streamable.com/ac6l8u

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=218094

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