Public bug reported:
My system has recently started hanging shortly after boot when using a kernel
version newer than 5.4.0-54-generic.
I can reproduce the hanging behaviour with kernel verions 5.4.0-56-generic
through 5.4.62-generic (latest at the moment).
The system works for a few seconds but then it becomes unresponsive. It is not
possible to open applications, run commands in a terminal or even shutdown
anymore.
Steps to reproduce:
1. Boot
2. Choose a newer kernel image
3. Login
4. In a terminal, enter sudo ls (first time works)
5. Enter sudo ls again (now hangs)
Changing a to console with Ctrl+Alt+FX works shortly but then it hangs as well.
If I am quick enough I can still click on the reboot menu button but then it
still hangs and cannot complete the shutdown.
With kernel version 5.4.0-54-generic everything works perfectly well and it has
done so for years now with any previous kernel version.
I would appreciate any guidance. Please feel free to ask me for further
information.
Thank you!
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.4.0-62-generic 5.4.0-62.70~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-54.60~18.04.1-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.21
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Jan 18 18:08:45 2021
InstallationDate: Installed on 2019-03-05 (685 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
SourcePackage: linux-signed-hwe-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe-5.4 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
** Attachment added: "syslog of hanging session"
https://bugs.launchpad.net/bugs/1912251/+attachment/5454207/+files/ubuntu-18.04-boot-syslog-kernel-5.4.0-62-generic.log
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https://bugs.launchpad.net/bugs/1912251
Title:
Ubuntu 18.04. hangs shortly after boot with a kernel >
5.4.0-54-generic
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