I'd like to note that I went here - https://bitbucket.org/eloy_garcia_pca/wallpaperdownloader/issues/34/ubuntu-1804 -object-metabackground and opened an issue on the current version of the WallpaperDownloader snap.
-- 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/1787822 Title: gnome-shell[2503]: Object Meta.Background (0x561c9af53600), has been already deallocated - impossible to access to it Status in gnome-shell package in Ubuntu: Triaged Bug description: lsb_release -rd Description: Ubuntu 18.04.1 LTS Release: 18.04 apt-cache policy gnome-shell gnome-shell: Installed: 3.28.2-0ubuntu0.18.04.1 Candidate: 3.28.2-0ubuntu0.18.04.1 Version table: *** 3.28.2-0ubuntu0.18.04.1 500 Since upgrading from 16.04.5LTS to 18.04.1LTS last Thursday my syslog has been filling with the below: Aug 19 11:34:11 localhost gnome-shell[2503]: Object Meta.Background (0x7febd401a470), has been already deallocated - impossible to access to it. This might be caused by the fact that the object has been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: == Stack trace for context 0x561c9a54e330 == Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #0 0x561c9a9edbd8 i resource:///org/gnome/shell/ui/background.js:718 (0x7febd000f450 @ 22) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #1 0x561c9a9edb50 i resource:///org/gnome/shell/ui/tweener.js:113 (0x7febd02c7e68 @ 37) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #2 0x7fff0e3e36e0 b resource:///org/gnome/gjs/modules/tweener/tweener.js:208 (0x7febd02d3b38 @ 54) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #3 0x7fff0e3e3830 b resource:///org/gnome/gjs/modules/tweener/tweener.js:337 (0x7febd02d3bc0 @ 1626) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #4 0x7fff0e3e38e0 b resource:///org/gnome/gjs/modules/tweener/tweener.js:350 (0x7febd02d3c48 @ 100) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #5 0x7fff0e3e3970 b resource:///org/gnome/gjs/modules/tweener/tweener.js:365 (0x7febd02d3cd0 @ 10) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #6 0x7fff0e3e3a60 b resource:///org/gnome/gjs/modules/signals.js:128 (0x7febd02d3230 @ 386) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #7 0x7fff0e3e3b10 b resource:///org/gnome/shell/ui/tweener.js:245 (0x7febd02cf808 @ 159) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #8 0x7fff0e3e3be0 b resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7febd02b5de0 @ 71) Aug 19 11:34:11 localhost org.gnome.Shell.desktop[2503]: #9 0x7fff0e3e3c80 b resource:///org/gnome/shell/ui/tweener.js:220 (0x7febd02cf780 @ 15) Following suggestions in previous bug reports about this I went through and removed all of my shell extensions: chris@localhost:~/.local/share/gnome-shell/extensions$ ls -l total 0 chris@localhost:~/.local/share/gnome-shell/extensions$ --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2014-10-24 (1395 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) Package: gnome-shell 3.28.2-0ubuntu0.18.04.1 PackageArchitecture: amd64 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18 Tags: bionic Uname: Linux 4.15.0-32-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-08-17 (3 days ago) UserGroups: adm cdrom dip kvm libvirt libvirtd lpadmin netdev plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1787822/+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