linux-kernel - Re: Dell laptop function keys stopped working between 5.10.46 and 5.13.9

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Message-ID: <1d4ce7d6-3213-45af-0467-7548f69b7d9e@molgen.mpg.de>
Date:   Mon, 16 Aug 2021 12:22:39 +0200
From:   Paul Menzel <pmenzel@...gen.mpg.de>
To:     Dell.Client.Kernel@...l.com, Matthew Garrett <mjg59@...f.ucam.org>,
        Pali Rohár <pali@...nel.org>
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Dell laptop function keys stopped working between 5.10.46 and
 5.13.9

[attach Linux 5.13.9 messages (output of `dmesg`)]

Am 16.08.21 um 11:48 schrieb Paul Menzel:
> Dear Linux folks,
> 
> 
> On a Dell Latitude E7250, updating Linux from 5.10.46 to 5.13.9 (Debian 
> sid/unstable) the two function keys to (un-)mute the microphone, and 
> enable/disable Wifi stopped working. The other function keys continue to 
> work. The `evtest` output did not change.
> 
>      Linux version 5.10.0-8-amd64 (debian-kernel@...ts.debian.org) 
> (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for 
> Debian) 2.35.2) #1 SMP Debian 5.10.46-4 (2021-08-03)
> 
>      Event: time 1629104514.184947, type 4 (EV_MSC), code 4 (MSC_SCAN), 
> value 88
>      Event: time 1629104514.184947, type 1 (EV_KEY), code 240 
> (KEY_UNKNOWN), value 2
> 
>      Linux version 5.13.0-trunk-amd64 (debian-kernel@...ts.debian.org) 
> (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for 
> Debian) 2.35.2) #1 SMP Debian 5.13.9-1~exp2 (2021-08-10)
> 
>      Event: time 1629103829.341409, type 4 (EV_MSC), code 4 (MSC_SCAN), 
> value 88
>      Event: time 1629103829.341409, type 1 (EV_KEY), code 240 
> (KEY_UNKNOWN), value 2
> 
> The output of `acpi_listen` also did not change.
> 
>      $ acpi_listen
>       9DBB5994-A997- 000000d0 00000000
> 
> Are you aware of such reports?
> 
> 
> Kind regards,
> 
> Paul

View attachment "linux-5.13.9-messages.txt" of type "text/plain" (172834 bytes)