Public bug reported:
System
Laptop: HP ProBook 450 G7
Ubuntu: (insert your Ubuntu version, e.g. 24.04.3 LTS)
Issue
After installing the 6.17.0-40-generic kernel through normal system
updates and rebooting, several devices stopped functioning:
Wi-Fi unavailable (Intel Dual Band Wireless adapter detected but not functional)
Ethernet unavailable (Realtek RTL8111 controller detected but no network
connectivity)
HDMI external display not detected
Internal touchpad not detected
An external USB mouse continued to work normally.
Expected behavior
All hardware should function normally after booting the updated kernel.
Observed behavior
Multiple hardware components become unusable only when booting
6.17.0-40-generic.
Regression
Booting the previous kernel (6.17.0-35-generic) immediately restores:
Wi-Fi
Ethernet
HDMI output
Internal touchpad
This strongly indicates a regression introduced in 6.17.0-40-generic.
I also observed ACPI BIOS messages during boot, but the system works
correctly under 6.17.0-35-generic.
I am unable to test everything else. Please check if there are any other
errors noteable.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.17.0-35-generic 6.17.0-35.35~24.04.1
ProcVersionSignature: Ubuntu 6.17.0-35.35~24.04.1-generic 6.17.13
Uname: Linux 6.17.0-35-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.2-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: dev_nod 2595 F.... pipewire
dev_nod 2599 F.... wireplumber
/dev/snd/seq: dev_nod 2595 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 16 11:30:13 2026
InstallationDate: Installed on 2026-02-17 (149 days ago)
InstallationMedia: Ubuntu 24.04.4 LTS "Noble Numbat" - Release amd64 (20260210)
MachineType: HP HP ProBook 450 G7
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-35-generic
root=UUID=e5beba05-3bf8-47fc-afc6-274442a6e65d ro quiet splash vt.handoff=7
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
linux-restricted-modules-6.17.0-35-generic N/A
linux-backports-modules-6.17.0-35-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.27
SourcePackage: linux-hwe-6.17
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/31/2025
dmi.bios.release: 27.0
dmi.bios.vendor: HP
dmi.bios.version: S71 Ver. 01.27.00
dmi.board.name: 86A0
dmi.board.vendor: HP
dmi.board.version: KBC Version 02.3E.00
dmi.chassis.asset.tag: 5CD0174DKL
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 2.62
dmi.modalias:
dmi:bvnHP:bvrS71Ver.01.27.00:bd10/31/2025:br27.0:efr2.62:svnHP:pnHPProBook450G7:pvrSBKPFV3:rvnHP:rn86A0:rvrKBCVersion02.3E.00:cvnHP:ct10:cvr:sku8MH02EA#BH5:
dmi.product.family: 103C_5336AN HP ProBook
dmi.product.name: HP ProBook 450 G7
dmi.product.sku: 8MH02EA#BH5
dmi.product.version: SBKPFV3
dmi.sys.vendor: HP
** Affects: linux-hwe-6.17 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2160784
Title:
Kernel regression in 6.17.0-40-generic on HP ProBook 450 G7
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