[Bug 1901083] Re: Inpsiron 1545 -- superflous key stroke logs (translated set 2, code 0x8d)

(uname -a:
Linux inspiron-1545.local 5.4.0-52-generic #57~18.04.1-Ubuntu SMP Thu Oct 15 14:04:49 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
)

I've been using 5.7.19 by default, but I'm on 5.4.0-52-generic for this
since it's a supported kernel. (These atkbd messages are identical in
both.)

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Title:
Inpsiron 1545 -- superflous key stroke logs (translated set 2, code
0x8d)

Status in linux package in Ubuntu:
Incomplete

Bug description:
I posted some information on bug #549741 stating that I was getting similar logs to what people were seeing in there, and was advised to go ahead and file a bug. I'm on a Dell Inspiron 1541 (this machine is approaching a decade old.) In dmesg, I get a pair like:
[ 529.926369] atkbd serio0: Unknown key pressed (translated set 2, code 0x8d on isa0060/serio0).
[ 529.926374] atkbd serio0: Use 'setkeycodes e00d <keycode>' to make it known.
[ 536.168508] atkbd serio0: Unknown key pressed (translated set 2, code 0x8d on isa0060/serio0).
[ 536.168512] atkbd serio0: Use 'setkeycodes e00d <keycode>' to make it known.

This pair will be like 2-10 seconds apart, then it could be 5 minutes
or more between pairs.

I've been running 5.7.19 kernel (installed via mainline), but did boot
5.4.0-52-generic to file this since it's a supported kerenl (I
seriously doubted it would make a difference since this has apparently
been logged since at least the 2.6.x kernel series, and it didn't.)

I consider this bug pretty minor to possibly invalid; these keystroke
messages spam up the kernel log a little but not too badly (since I'm
not getting them every second like the original poster in #549741, but
rather getting one, getting another a few seconds later, then it may
be 5 minutes or more before I get another pair of them a few seconds
apart.).

My battery packed up quite a while ago and shows 0% charge.. it has
begun every so often "dropping off" and back on a few seconds later,
both in gkrellm, and whatever app shows the battery icon in top right
(near network manager, volume, etc.) I think it sends this 0x8d each
time the battery status changes. Not sure what the point of the 0x8d
is, but it's harmless for Linux to ignore, it's well aware of the
status changes via ACPI anyway.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.4.0-52-generic 5.4.0-52.57~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-52.57~18.04.1-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.18
Architecture: amd64
CurrentDesktop: GNOME-Flashback:GNOME
Date: Thu Oct 22 15:13:25 2020
InstallationDate: Installed on 2018-09-09 (774 days ago)
InstallationMedia:

ProcEnviron:
 TERM=screen.xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-signed-hwe-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.18
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hwertz 3637 F.... pulseaudio
CurrentDesktop: GNOME-Flashback:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-09-09 (774 days ago)
InstallationMedia:

MachineType: Dell Inc. Inspiron 1545
Package: linux (not installed)
ProcEnviron:
TERM=screen.xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic root=UUID=e2909436-8fb2-4f09-a757-822f78af9d2e ro nosplash noautogroup mitigations=off
ProcVersionSignature: Ubuntu 5.4.0-52.57~18.04.1-generic 5.4.65
RelatedPackageVersions:
linux-restricted-modules-5.4.0-52-generic N/A
linux-backports-modules-5.4.0-52-generic N/A
linux-firmware 1.173.19
StagingDrivers: ashmem_linux
Tags: bionic staging
Uname: Linux 5.4.0-52-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo vboxusers xpra
_MarkForUpload: True
dmi.bios.date: 12/07/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.name: 0G848F
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd12/07/2009:svnDellInc.:pnInspiron1545:pvr:rvnDellInc.:rn0G848F:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Inspiron 1545
dmi.sys.vendor: Dell Inc.

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