Issues

• session-child calls exit() from its SIGTERM handler and deadlocks in malloc; greeter scope then hangs until systemd SIGKILLs it (90 s login delay)

  ubuntu/lightdm#484 · Filter by author mgkuhn opened on Sep 24, 2026
  2

• lightdm-session: login delayed after installing zenity (blocking config-error dialog)

  ubuntu/lightdm#482 · Filter by author winnerym100 opened on Sep 23, 2026

• Couldn't login with elementary's greeter

  regression
  Bug

  ubuntu/lightdm#480 · Filter by author garaevdi opened on Sep 13, 2026
  1

• XDMCP sessions only honor the Seat:* section, not Seat:xdmcp* ones

  xdmcp/vnc/xdmc
  Feature

  ubuntu/lightdm#474 · Filter by author apteryks opened on Sep 1, 2026
  1

• Unable to use guest-accounts

  ubuntu/lightdm#473 · Filter by author SantiBurgos1089 opened on Aug 31, 2026
  6

• non-deterministic test-session-greeter-reconnect test failure (~10% fail rate)

  help wanted
  Bug

  ubuntu/lightdm#472 · Filter by author apteryks opened on Aug 31, 2026
  3

• LightDM ignores logind's PrepareForShutdown: the greeter keeps accepting logins while a shutdown is pending

  Task

  ubuntu/lightdm#470 · Filter by author Fantu opened on Aug 30, 2026 · 1.34.0
  3

• Commit 6589529 in 1.33 breaks certain types of xserver-command settings

  Bug

  ubuntu/lightdm#466 · Filter by author farblos opened on Aug 19, 2026
  3

• liblightdm-gobject gir: "common-user" property missing name attribute in <type>

  help wanted
  Task

  ubuntu/lightdm#463 · Filter by author jpeisach opened on Aug 17, 2026

• Add ability to change default $HOME location for guest users

  enhancement
  Feature

  ubuntu/lightdm#460 · Filter by author tomekdev opened on Aug 13, 2026

• Revisit removed upstream defaults

  Task

  ubuntu/lightdm#458 · Filter by author jpeisach opened on Aug 11, 2026

• Language picker should use pam_env to change LANG and LANGUAGE, otherwise the profile read overrides them after

  pam
  ubuntu/lightdm#444 · Filter by author baybal opened on Aug 1, 2026

• pam_env user_readenv option should be honoured for security

  pam
  ubuntu/lightdm#443 · Filter by author baybal opened on Aug 1, 2026

• lightdm starts X before slow-initializing GPUs register their DRM device, leaving external displays unconfigured (race condition on cold boot)

  ubuntu/lightdm#441 · Filter by author Negraldi opened on Jul 19, 2026
  1

• LightDM returns to login screen when starting XFCE session

  ubuntu/lightdm#437 · Filter by author mtosatti33 opened on May 31, 2026
  3

• Critical Error (Video Corruption and System Restart) during Transition from Login Screen to User Session on AMD RDNA 3 Hardware

  Need info
  ubuntu/lightdm#436 · Filter by author tudorrobertraul-netizen opened on May 11, 2026
  1

• LightDM 1.32.0 crashes on XDMCP unmanaged-session timeout (double free)

  crash
  Bug

  ubuntu/lightdm#435 · Filter by author agnon opened on May 8, 2026
  1

• [Race Condition] gkr-pam: unable to locate daemon control file at startup

  pam
  ubuntu/lightdm#433 · Filter by author D3M-Sudo opened on Apr 21, 2026

• LightDM results in no HDMI output (blank screen), even though the service appears to be running normally.

  ubuntu/lightdm#432 · Filter by author nnovation opened on Apr 3, 2026

• dm-tool switch-to-user myuser fails with NULL pointer error if myuser has never logged in via the greeter

  Bug

  ubuntu/lightdm#431 · Filter by author codethief opened on Mar 21, 2026

• display-setup-script does not execute on resume from sleep

  ubuntu/lightdm#428 · Filter by author o-alquimista opened on Mar 8, 2026
  1

• LightDM fails to start greeter when greeter-setup-script exits with non-zero status

  Need info
  ubuntu/lightdm#426 · Filter by author Gundilla opened on Jan 3, 2026
  1

• Enable seat-specific configuration for xdmcp, vnc, and default seat (don't allow NULL as seat_name in set_seat_properties())

  ubuntu/lightdm#424 · Filter by author tmcintos opened on Dec 28, 2025

• autologin-user-timeout=10 causes authentication manipulation error and breaks (disables) lightdm process

  ubuntu/lightdm#422 · Filter by author Steve-Newcomb opened on Dec 10, 2025

• Does not remember last session....

  ubuntu/lightdm#420 · Filter by author xpusostomos opened on Nov 7, 2025