After a wake up from a sleep extra keys are typed

[Danil]

I have an old keyboard with a PS2 connector attached to my PC via a PS2-USB plug (yes, I'm a dinosaur).

Each time the system wakes up, typing on a keyboard starts by prepending an extra key - typically "8" although other keys and key combinations were visible. This behavior does not happen in a normal boot until sleep is requested.

It's even hard for me to type a description because extra chars appear while typing.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: udev 249.11-0ubuntu3.9
ProcVersionSignature: Ubuntu 5.19.0-43.44~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-43-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
CustomUdevRuleFiles: 70-snap.snapd.rules 70-snap.gimp.rules 70-snap.slack.rules 99-jlink.rules 70-owon-vds-tiny.rules 49-stlinkv1.rules 70-snap.vlc.rules 70-snap.snap-store.rules 99-platformio-udev.rules 70-snap.firefox.rules 70-snap.audacity.rules 49-stlinkv3.rules 53-adi-m1k-usb.rules 49-stlinkv2-1.rules 60-openocd.rules 99-usb-serial.rules 70-snap.snapd-desktop-integration.rules 60-vboxdrv.rules 70-snap.telegram-desktop.rules 49-stlinkv2.rules
Date: Sat Jun 10 13:07:04 2023
InstallationDate: Installed on 2022-08-06 (308 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
MachineType: ASUS All Series
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-43-generic root=UUID=03e2f4e5-1b6a-4079-a024-85a433b87c15 ro quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/11/2015
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2801
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z97-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2801:bd11/11/2015:br4.6:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ97-A:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:skuAll:
dmi.product.family: ASUS MB
dmi.product.name: All Series
dmi.product.sku: All
dmi.product.version: System Version
dmi.sys.vendor: ASUS

[Danil (dizcza)]

After I changed the BIOS settings of PS2 Keyboard init from Auto to "Full initialization", the issue seems to disappear.

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

I'll mark this bug as incomplete, as your last comment implies it was a box issue relating to a BIOS setting.

FYI: I'm using a 1990 IBM Model M keyboard on my PC; it's likewise PS2 connected thru PS2-USB as my box doesn't have PS2 ports, and I don't experience such issues.

Whilst my system is dualboot & has the LTS (22.04/jammy) installed, most nights I'm suspending my box on *mantic* or the current development release, and don't experience this issue; but can't recall an issue with my jammy install either.

[Launchpad Janitor (janitor)]

[Expired for systemd (Ubuntu) because there has been no activity for 60 days.]