Public bug reported:
It happened after release upgrade installed. First and Second monitor
detected by ubuntu but the second monitor always turn black screen after
ubuntu bootup successfully.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.38
ProcVersionSignature: Ubuntu 5.13.0-40.45~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.23
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Thu May 5 09:19:28 2022
InstallationDate: Installed on 2021-05-07 (362 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_AU:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_AU.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade focal
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https://bugs.launchpad.net/bugs/1971638
Title:
Second Monitor detected but always turn black screen. If I turn off
and on again, the screen will turn back to normal but turn back to
black screen after few seconds
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