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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1971638/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs