I wanted to chime in to report that the released bionic fix ( gnome- shell-extension-ubuntu-dock_0.9.1ubuntu18.04.3_all.deb ) has indeed seemed to correct this issue on my system. I am running the stock Ubuntu dock variant and not the dash-to-dock extension version, which is what I suspect may be a continued cause of problems for others are still having the issue.
Within the last two or so weeks the issue was inexplicably occurring with such a high prevalence that I thought I was going to have to switch to a new desktop environment. I had the password prompt on the shutter screen disabled, and in that case once the dock appeared above the shutter the only way to regain control of the system was to drop to a shell and run "killall -HUP gnome-shell." Thankfully, disabling transparency effects for the dock did remedy the issue. I re-enabled transparency with the patch and things seem to be working fine. I have only had to restart Gnome once because of an incident where the shutter would not raise correctly, but the dock was not visible so I cannot say if it is related to this or just a one-off fluke. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell-extension-ubuntu-dock in Ubuntu. https://bugs.launchpad.net/bugs/1769383 Title: Ubuntu dock/launcher is shown on the lock screen Status in gnome-shell package in Ubuntu: Invalid Status in gnome-shell-extension-ubuntu-dock package in Ubuntu: Fix Released Status in gnome-shell source package in Bionic: Invalid Status in gnome-shell-extension-ubuntu-dock source package in Bionic: Fix Committed Status in gnome-shell source package in Cosmic: Invalid Status in gnome-shell-extension-ubuntu-dock source package in Cosmic: Fix Committed Status in gnome-shell source package in Disco: Invalid Status in gnome-shell-extension-ubuntu-dock source package in Disco: Fix Released Bug description: [Impact] When entering the lock-screen mode, gnome-shell disables all the extensions. It can happen that under certain conditions ubuntu-dock re-enables itself, causing the ubuntu-dock to appear in the lock-screen, exposing sensitive information. One possible way to reproduce this is to enable dash-to-dock and ubuntu-dock at the same time. [Test Case] 1. Make sure ubuntu-dock is enabled 2. Enable dash-to-dock too 3. Lock the screen 4. Make sure the dock does not appear on the lock screen 5. Make sure there is no warning is the journal [Possible Regressions] Even if it's something we don't really support please make sure that you can use dash-to-dock without uninstalling ubuntu-dock. [Original Bug] After an update from ubuntu 16.04 to 18.04 the dock is aviable on the lockscreen after user login. I did not configure this knowingly. Also i can start every application which is available on the dock. Settings, virtual box, visualstudio code and so on. After the update to 18.04 i just configure the screen frequency to 144Hz and the night mode on. And attach the dock on bottom. I later undid these customizations back to configuration before, but the dock is stil aviable on lockscreen. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-settings-daemon 3.28.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat May 5 18:30:16 2018 InstallationDate: Installed on 2018-04-08 (27 days ago) InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: gnome-settings-daemon UpgradeStatus: Upgraded to bionic on 2018-05-01 (3 days ago) --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-04-08 (27 days ago) InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228) NonfreeKernelModules: nvidia_modeset nvidia Package: gnome-shell-extension-ubuntu-dock 0.9.1 PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-05-01 (4 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1769383/+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