Public bug reported:

Unlike my laptop, my desktop, has issues with the lockscreen background,
which disappears and goes black after trying to unlock the lockscreen
only after the login section (after you click or type something in the
screen to put the password)

Didn't happen on Ubuntu 23.04 or 22.04 LTS

Happens even on a fresh 23.10 install.

Wayland session.

Tried MUTTER_DEBUG_KMS_THREAD_TYPE=user but did not make any effect.

After some tests, it looks like it happens only when a double monitor is used. 
The second monitor is not affected.
Changing the primary monitor for the dock didn't make any effect

The monitor having the issue: Gigabyte M27Q 2560x1440 170hz, using Displayport 
with FreeSync enabled
Second monitor, not having the issue: Zowie XL2411Z 1080p with DVI input. 

There are no other symptoms or useful logs somewhere. The session works
fine overall.

Disabling the gnome extensions didn't make any effect.

Picture attached.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: gnome-shell 45.0-1ubuntu2
ProcVersionSignature: Ubuntu 6.5.0-10.10-generic 6.5.3
Uname: Linux 6.5.0-10-generic x86_64
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov 21 22:22:19 2023
DisplayManager: gdm3
InstallationDate: Installed on 2023-11-19 (2 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
ProcEnviron:
 LANG=it_IT.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions: mutter-common 45.0-3ubuntu3.1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug mantic wayland-session

** Attachment added: "Schermata del 2023-11-21 22-31-05.png"
   
https://bugs.launchpad.net/bugs/2044190/+attachment/5721953/+files/Schermata%20del%202023-11-21%2022-31-05.png

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/2044190

Title:
  Lockscreen shows black background in user login section

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  Unlike my laptop, my desktop, has issues with the lockscreen
  background, which disappears and goes black after trying to unlock the
  lockscreen only after the login section (after you click or type
  something in the screen to put the password)

  Didn't happen on Ubuntu 23.04 or 22.04 LTS

  Happens even on a fresh 23.10 install.

  Wayland session.

  Tried MUTTER_DEBUG_KMS_THREAD_TYPE=user but did not make any effect.

  After some tests, it looks like it happens only when a double monitor is 
used. 
  The second monitor is not affected.
  Changing the primary monitor for the dock didn't make any effect

  The monitor having the issue: Gigabyte M27Q 2560x1440 170hz, using 
Displayport with FreeSync enabled
  Second monitor, not having the issue: Zowie XL2411Z 1080p with DVI input. 

  There are no other symptoms or useful logs somewhere. The session
  works fine overall.

  Disabling the gnome extensions didn't make any effect.

  Picture attached.

  ProblemType: Bug
  DistroRelease: Ubuntu 23.10
  Package: gnome-shell 45.0-1ubuntu2
  ProcVersionSignature: Ubuntu 6.5.0-10.10-generic 6.5.3
  Uname: Linux 6.5.0-10-generic x86_64
  ApportVersion: 2.27.0-0ubuntu5
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Nov 21 22:22:19 2023
  DisplayManager: gdm3
  InstallationDate: Installed on 2023-11-19 (2 days ago)
  InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 
(20231016.1)
  ProcEnviron:
   LANG=it_IT.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions: mutter-common 45.0-3ubuntu3.1
  SourcePackage: gnome-shell
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2044190/+subscriptions


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