I tested pidof gnome-shell before and after the bug occurrence but the answer is the same. Please find attached two screenshots of login screen before and after bug occurrence. After the bug occurrence the dock is visible in the login screen.
** Attachment added: "login screen after (left) and before (right) bug occurrence" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1813511/+attachment/5234278/+files/photo_2019-01-30_14-21-50m.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813511 Title: Gnome shell extensions disabled at every wakeup after sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1813511/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs