This bug was fixed in the package gdm3 - 49~beta-0ubuntu3 --------------- gdm3 (49~beta-0ubuntu3) questing; urgency=medium
* Make gdm3 depend on libnss-systemd (LP: #2121017) -- Daniel van Vugt <[email protected]> Mon, 01 Sep 2025 17:19:47 +0800 ** Changed in: gdm3 (Ubuntu) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gdm3 in Ubuntu. https://bugs.launchpad.net/bugs/2121017 Title: gdm3 49~beta doesn't start [unix_chkpwd: could not obtain user info (gdm-greeter)] on systems installed before 2024 Status in gdm3 package in Ubuntu: Fix Released Bug description: My system: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Questing Quokka (development branch) Release: 25.10 Codename: questing Completely updated. After yesterday (2025-08-19) package updates, gdm3 stops on starting Ubuntu and It's impossible to start Gnome. Gdm3 freezes computer. On restarting computer, I see a lot of dmesg messages: nouveau cannot find any crtc or sizes I've blacklisted nouveau driver and installed several nvidia drivers and nothing works. My nvidia is: # nvidia-driver-assistant Detected GPUs: NVIDIA GeForce RTX 4070 Laptop GPU - (pci_id 0x2860) Detected system: Ubuntu 25.10 Only works to install lightdm. ProblemType: Bug DistroRelease: Ubuntu 25.10 Package: gdm3 49~beta-0ubuntu2 ProcVersionSignature: Ubuntu 6.16.0-13.13-generic 6.16.0 Uname: Linux 6.16.0-13-generic x86_64 ApportVersion: 2.33.1-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed Aug 20 08:23:58 2025 InstallationDate: Installed on 2023-06-17 (795 days ago) InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1) SourcePackage: gdm3 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/2121017/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

