[Bug 1971638] [NEW] 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

[Bill Chan]

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

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  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)

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