Public bug reported:
After closing the lid of the Laptop (HP Elitebook 840) the system did
hang partly. After opening again, the Kubuntu/KDE Ui did work, but some
commands in the shell like "sudo" stopped working. Trying to restart the
either through the shell or the menu did not work.
BIOS is up-to-date.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-38-generic 7.0.0-38.38
ProcVersionSignature: Ubuntu 7.0.0-38.38-generic 7.0.14
Uname: Linux 7.0.0-38-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mitosch 2055 F.... pipewire
mitosch 2059 F.... wireplumber
/dev/snd/pcmC0D0p: mitosch 2055 F...m pipewire
/dev/snd/seq: mitosch 2055 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sun Oct 11 08:15:59 2026
InstallationDate: Installed on 2026-10-06 (5 days ago)
InstallationMedia: Kubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64
(20260826.1)
MachineType: HP HP EliteBook 840 14 inch G10 Notebook PC
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-38-generic
root=UUID=f56dacf8-dc22-4b6e-b2a0-b04d7b15d900 ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/08/2026
dmi.bios.release: 13.1
dmi.bios.vendor: HP
dmi.bios.version: V70 Ver. 01.13.01
dmi.board.name: 8B41
dmi.board.vendor: HP
dmi.board.version: KBC Version 51.47.00
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 81.71
dmi.modalias:
dmi:bvnHP:bvrV70Ver.01.13.01:bd07/08/2026:br13.1:efr81.71:svnHP:pnHPEliteBook84014inchG10NotebookPC:pvrSBKPFV3:rvnHP:rn8B41:rvrKBCVersion51.47.00:cvnHP:ct10:cvr:sku6V5W7AV:pfa103C_5336ANHPEliteBook:
dmi.product.family: 103C_5336AN HP EliteBook
dmi.product.name: HP EliteBook 840 14 inch G10 Notebook PC
dmi.product.sku: 6V5W7AV
dmi.product.version: SBKPFV3
dmi.sys.vendor: HP
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Attachment added: "stack trace of the deadlock causing the hang"
https://bugs.launchpad.net/bugs/2170475/+attachment/6008075/+files/ec-deadlock-trace.txt
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https://bugs.launchpad.net/bugs/2170475
Title:
Closing the lid resulted in a dead-lock
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