the screen is messed up with a lot of flashing rubbish

[Uno Ytterbom]

after login, the screen is impossible to read because of all flashing rubbish

ProblemType: Package
DistroRelease: Ubuntu 21.04
Package: kerneloops 0.12+git20140509-6ubuntu3
ProcVersionSignature: Ubuntu 5.11.0-40.44-generic 5.11.22
Uname: Linux 5.11.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu65.4
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Tue Nov 23 20:45:48 2021
ErrorMessage: installed kerneloops package post-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2021-02-15 (284 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
Python3Details: /usr/bin/python3.9, Python 3.9.5, python3-minimal, 3.9.4-1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.9ubuntu1
 apt 2.2.4ubuntu0.1
SourcePackage: kerneloops
Title: package kerneloops 0.12+git20140509-6ubuntu3 failed to install/upgrade: installed kerneloops package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)