linux-kernel - PROBLEM: asus_nb_wmi sends KEY_BRIGHTNESSDOWN on pressing CAPS Lock and PrntScrn on Zenbook S 13 UX5304VA

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Date:   Sun, 1 Oct 2023 08:11:32 +0000
From:   James John <me@...jajo.com>
To:     Corentin Chary <corentin.chary@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Mark Gross <markgross@...nel.org>
Cc:     platform-driver-x86@...r.kernel.org,
        acpi4asus-user@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: PROBLEM: asus_nb_wmi sends KEY_BRIGHTNESSDOWN on pressing CAPS Lock
 and PrntScrn on Zenbook S 13 UX5304VA

Hello,

First of all, thank you very much for the work you do with maintaining 
these drivers and supporting systems. It is not an easy one.

I have debugged this bug down to the asus_nb_wmi module. When I disable 
this module, the problem goes away, but then other hotkeys are not 
recognized. Attached is a debug event from libinput, where I pressed the 
capslock twice

I have tried to dabble around with asus-nb-wmi.c codes to see if I could 
fix it by luck, by adding UX5304VA to `static const struct dmi_system_id 
asus_quirks[]` but to no avail. And I have a very little knowledge of 
what "quirks" are.

I have attached some information regarding my hardware and kernel. I 
will be available to provide any more information that might be needed 
to resolve this.

A related open thread: https://bbs.archlinux.org/viewtopic.php?pid=2123716

Thank you!

View attachment "lininput.log" of type "text/x-log" (2232 bytes)

View attachment "proc-cpuinfo.log" of type "text/x-log" (20161 bytes)

View attachment "proc-iomem.log" of type "text/x-log" (4566 bytes)

View attachment "proc-ioports.log" of type "text/x-log" (862 bytes)

View attachment "proc-modules.log" of type "text/x-log" (12673 bytes)

View attachment "proc-version.log" of type "text/x-log" (178 bytes)