Public bug reported:
Ubuntu 24.04.4 LTS
GNOME Shell 46.0
gdm3 46.2-1ubuntu1~24.04.9
gnome-remote-desktop 46.3-0ubuntu1.2
Remote Login is enabled in GNOME Remote Desktop.
Symptoms:
- RDP port 3389 is listening.
- TLS certificate configured.
- Username/password configured.
- Remmina and FreeRDP reach the server.
- Connection loops and never reaches a user desktop.
Logs show:
Gdm: GdmDisplay: Session never registered, failing
and
Gdm: on_display_added: assertion 'GDM_IS_REMOTE_DISPLAY (display)'
failed
and
Gdm: on_display_removed: assertion 'GDM_IS_REMOTE_DISPLAY (display)'
failed
Every connection attempt creates additional gdm-launch-environment
sessions but no user session is created.
Wayland is enabled (default configuration).
Issue persists after reinstalling Ubuntu Desktop 24.04.4.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: gdm3 46.2-1ubuntu1~24.04.9
ProcVersionSignature: Ubuntu 6.17.0-35.35~24.04.1-generic 6.17.13
Uname: Linux 6.17.0-35-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Jun 12 09:33:35 2026
InstallationDate: Installed on 2026-06-11 (1 days ago)
InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gdm3 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble wayland-session
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https://bugs.launchpad.net/bugs/2156603
Title:
GNOME Remote Login (RDP) fails with "GdmDisplay: Session never
registered, failing" on Ubuntu 24.04.4
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