Public bug reported:
Ubuntu 24.04, HP EliteBook 840 G8, kernel linux-hwe-6.17.
Two regressions introduced in 6.17.0-19 (working correctly on
6.17.0-14):
1. REBOOT HANGS WITH LID CLOSED
When rebooting with the laptop lid closed, the system shuts down but never
restarts. Keyboard backlight stays on, display never initializes. Requires
holding power button 10 seconds and manual power on.
Workaround: HandleLidSwitchExternalPower=ignore in /etc/systemd/logind.conf.d/
2. EXTERNAL MONITOR LOST AFTER SCREEN LOCK WITH LID CLOSED
After Super+L with lid closed, external monitor goes blank and cannot be
recovered without opening the lid. Mutter logs show repeated assertion failures:
meta_monitor_manager_get_logical_monitor_from_number: assertion
'(unsigned int) number < g_list_length (manager->logical_monitors)' failed
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor != NULL'
failed
Both issues are absent on 6.17.0-14. Currently pinned to 6.17.0-14 as
workaround.
Hardware: HP EliteBook 840 G8, BIOS T37 Ver. 01.23.00, Ubuntu 24.04 LTS
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.17.0-14-generic 6.17.0-14.14~24.04.1
ProcVersionSignature: Ubuntu 6.17.0-14.14~24.04.1-generic 6.17.9
Uname: Linux 6.17.0-14-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Mar 30 15:33:15 2026
InstallationDate: Installed on 2026-01-26 (63 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: HP HP EliteBook 840 G8 Notebook PC
ProcEnviron:
LANG=pl_PL.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.17.0-14-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.17.0-14-generic N/A
linux-backports-modules-6.17.0-14-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.25
SourcePackage: linux-hwe-6.17
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/06/2025
dmi.bios.release: 23.0
dmi.bios.vendor: HP
dmi.bios.version: T37 Ver. 01.23.00
dmi.board.name: 8AB8
dmi.board.vendor: HP
dmi.board.version: KBC Version 58.17.00
dmi.chassis.asset.tag: 1801832080
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 88.23
dmi.modalias:
dmi:bvnHP:bvrT37Ver.01.23.00:bd11/06/2025:br23.0:efr88.23:svnHP:pnHPEliteBook840G8NotebookPC:pvrSBKPFV3:rvnHP:rn8AB8:rvrKBCVersion58.17.00:cvnHP:ct10:cvr:sku47F04UC#ABB:
dmi.product.family: 103C_5336AN HP EliteBook
dmi.product.name: HP EliteBook 840 G8 Notebook PC
dmi.product.sku: 47F04UC#ABB
dmi.product.version: SBKPFV3
dmi.sys.vendor: HP
** Affects: linux-hwe-6.17 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2146792
Title:
Regression in 6.17.0-19: reboot hangs and mutter assertion failures
when lid is closed
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