Are you able to reproduce this issue at will? It sounds like there is something wrong with your authentication settings. Did you install fingerprint reader software, or are you connected to an LDAP directory?
** Package changed: gnome-screensaver (Ubuntu) => gnome-shell (Ubuntu) ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- 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/1808908 Title: Screen not locked when coming out of suspend/hibernate Status in gnome-shell package in Ubuntu: Incomplete Bug description: Ubuntu 18.04.1 Just a few minutes ago, I typed the first character of my password, and the lock screen didn't change to the login screen. I typed the character again and nothing happened, so I pressed the spacebar to try to get the thing's attention. Then it unlocked. This is spooked me, so I restarted my laptop and tried logging in with a random string, and nothing happened. I logged in with my regular password and then promptly changed it. I tried unlocking my system with my old password, and it worked. However, the terminal only recognizes my new root password. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: unknown ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18 Uname: Linux 4.15.0-42-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Dec 17 23:10:46 2018 InstallationDate: Installed on 2018-09-15 (94 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-screensaver Symptom: security Title: Screen not locked when coming out of suspend/hibernate 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/1808908/+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