Public bug reported:
Immediately after login watchdog soft-lock cpu (x) occurs. Attempted
different desktop environment, reinstalling and reconfiguring lightdm,
logging in from shell and updating. Nothing that I've tried has able to
get me logged into a desktop environment since I get a CPU lockup before
then. Attempting to shutdown from shell also results in unexpected
behavior. 'sudo shutdown -a now' results in a black screen and
unresponsive keyboard, I'm forced to hardboot.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-32-generic 4.15.0-32.35
ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18
Uname: Linux 4.15.0-32-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Fri Aug 17 01:35:44 2018
InstallationDate: Installed on 2018-08-17 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
TERM=linux
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1787529
Title:
login causes watchdog cpu lockup
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