Thank you for reporting this bug to Ubuntu. Ubuntu 21.04 (hirsute) reached end-of-life on January 20, 2022.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in. ** Changed in: gnome-shell (Ubuntu) Status: Confirmed => Won't Fix -- 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/1922340 Title: GNOME lock screen wallpaper turns black on main display Status in GNOME Shell: Unknown Status in gnome-shell package in Ubuntu: Won't Fix Bug description: 1) Description: Ubuntu Hirsute Hippo (development branch) Release: 21.04 2) gnome-shell: Installed: 3.38.4-1ubuntu1 Candidate: 3.38.4-1ubuntu1 Version table: *** 3.38.4-1ubuntu1 500 500 http://pl.archive.ubuntu.com/ubuntu hirsute/main amd64 Packages 100 /var/lib/dpkg/status 3) This bug only appears on Gnome with Wayland. It does not affect Gnome on xorg. After the screen stays off and locked for some time the wallpaper on the main display turns black. It never happens on the secondary display. The issue is also reported, here on gitlab: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3206 ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: gnome-shell 3.38.4-1ubuntu1 ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7 Uname: Linux 5.11.0-13-generic x86_64 ApportVersion: 2.20.11-0ubuntu61 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Fri Apr 2 11:50:15 2021 DisplayManager: gdm3 RelatedPackageVersions: mutter-common 3.38.4-1ubuntu1 SourcePackage: gnome-shell UpgradeStatus: Upgraded to hirsute on 2021-04-02 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1922340/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp