LightDM
Appearance
	
	
| LightDM | |
|---|---|
LightDM in elementaryOS with its default "Pantheon Greeter 5.0" front-end  | |
| Original author | Robert Ancell | 
| Developers | 
  | 
| Initial release | September 10, 2010 | 
| Stable release | 1.32.0[1]   | 
| Repository | |
| Written in | C | 
| Operating system | Linux, OpenIndiana | 
| Size | 1 MB | 
| Available in | >50 languages[2][3][4] | 
| Type | X display manager | 
| License | GPL-3.0-or-later | 
| Website | github | 
LightDM is a free and open-source X display manager that aims to be lightweight, fast, extensible and multi-desktop.[5] It can use various front-ends to draw the user interface,[6] also called Greeters.[7] It also supports Wayland.[8][9]
LightDM is the default display manager for Edubuntu, Xubuntu and Mythbuntu since the 11.10 release,[10][11][12] for Lubuntu since the 12.04 release[13] until 16.10,[14] for Kubuntu beginning with 12.10[15] until 15.04[16] for Linux Mint[17] and Antergos.
Features
[edit]Features include:
- Codebase with very few dependencies
 - Supports different display technologies (X11 and Wayland through Mir)
 - Supports remote login (incoming – XDMCP, VNC, outgoing – XDMCP, pluggable)
 - Comprehensive test suite
 - Standards-compliance (PAM, logind, etc.)
 - Well-defined interface between the server and user interface
 - Cross-desktop (greeters can be written in any toolkit)
 - Well-defined greeter API allowing multiple GUIs
 - Support for all display manager use cases, with plug-ins where appropriate
 
LightDM has a simpler code base than GDM and does not load any GNOME libraries to work, but at the cost of some features that the user may or may not need.[18][19]
Available greeters
[edit]| LightDM Greeters in active development | |||
|---|---|---|---|
| Name | Key feature(s) | Version | Website | 
| Arctica Greeter | Greeter for Arctica,[20] fork of Unity Greeter | 0.99.1.4[21] | github | 
| Deepin Greeter | Greeter for Deepin | 5.0.0[22] | github | 
| GTK Greeter | Greeter for Xubuntu and former GTK reference implementation,[23] former Lubuntu default,[13] Xubuntu default[11] | 2.0.8[24] | github | 
| Mini Greeter | Minimalist, single-user. INI configuration | 0.5.1[25] | github | 
| Pantheon Greeter | Greeter for elementary OS[26] | 7.0.0[27] | github | 
| Qt5 Greeter | Greeter for Qt 5 | 0.11.1[28] | github | 
| Slick Greeter | Greeter for Linux Mint, fork of Unity Greeter | 1.4.1[29] | github | 
| WebEngine Greeter | QtWebEngine-based, C++ rewrite of Web Greeter 3.0 | — | github | 
| Web Greeter | QtWebEngine-based, continuing Antergos Web Greeter 3.0,[30] allows to create web based themes | 3.4.1[31] | |
| WebKit2 Greeter | Easy theming[6] | 2.0.0[32] | gitlab | 
| Dormant LightDM Greeters | |||
| Name | Key feature(s) | Version | Website | 
| Antergos Web Greeter | Default greeter for Antergos.[33] Uses HTML/Javascript for theming[34] | 2.2.5[35] | github | 
| Crowd Greeter | Demonstration for an OpenGL-based Greeter[36][37] | 0.0.2[38] | launchpad | 
| GTK Builder Greeter | An alternative implementation from LXDE for GTK based on GtkBuilder featuring WYSIWYG theme editing with Glade Interface Designer. | 0.2.0[39] | lxde | 
| KDE Greeter | Plasma 4 integration,[40][41] Kubuntu default[15] until superseded by SDDM[16] | 0.3.2.2[42] | github | 
| LXQt Greeter | Qt-only Greeter for LXQt desktop (formerly Razor Greeter[43]) until superseded by SDDM[44] | 0.7 | github | 
| Qt Greeter | Reference implementation in Qt | — | launchpad | 
| Unity Greeter | Former Ubuntu default[6] | 15.04.3[45] | launchpad | 
See also
[edit]References
[edit]- ^ "Release 1.32.0". 18 July 2022. Retrieved 19 July 2022.
 - ^ "Translations: Light Display Manager". Translations.launchpad.net. 2011-05-13. Retrieved 2013-05-29.
 - ^ "Translations: LightDM GTK Greeter". Translations.launchpad.net. 2013-05-08. Retrieved 2013-05-29.
 - ^ "Translations: Unity Greeter". Translations.launchpad.net. 2012-01-24. Retrieved 2013-05-29.
 - ^ The Light Display Manager (LightDM), retrieved 17 May 2011
 - ^ a b c Ubuntu 11.10 To Switch From GDM To LightDM, 12 May 2011, retrieved 18 May 2011
 - ^ Fischer, Matt (2012-02-07). "» So You Want to Write a LightDM Greeter… Matt Fischer's Blog". Mattfischer.com. Archived from the original on 2013-07-19. Retrieved 2013-05-29.
 - ^ "Readme Manual of LightDM". GitHub. 3 May 2022.
 - ^ "LightDM". Arch Linux Wiki. Retrieved 2023-05-13.
 - ^ Ubuntu 11.10 ReleaseNotes, Canonical, retrieved 28 May 2012
 - ^ a b Xubuntu 11.10 Release Notes, Canonical, retrieved 17 December 2012
 - ^ "BionicBeaver/ReleaseNotes - Ubuntu Wiki".
 - ^ a b Lubuntu 12.04 ReleaseNotes, Canonical, retrieved 14 Jun 2012
 - ^ "Discussion about greeter (Log in) application for 16.10 Qt versi... : Blueprints : Lubuntu Next". 11 May 2014.
 - ^ a b RFC] Merging LightDM into KDE Workspaces, mail.kde.org, 20 August 2012, retrieved 2013-05-29
 - ^ a b Bhartiya, Swapnil. "Kubuntu 15.04 With Plasma 5.3 - A Totally Different Kubuntu - Linux.com". Linux.com - The source for Linux Information. Archived from the original on 2016-03-16. Retrieved 2015-05-03.
 - ^ New features in Linux Mint 18.2 Cinnamon Archived 2020-11-12 at the Wayback Machine (go down or search for LightDM), retrieved 2017-07-02
 - ^ Ubuntu adopts LightDM, login screens to get more exciting, Geek.com, 12 May 2011, archived from the original on 16 October 2012, retrieved 18 May 2011
 - ^ LightDM, or: an examination of a misunderstanding of the problem, 12 May 2011, retrieved 14 July 2015
 - ^ "The Arctica Project". arctica-project.org. The Arctica Project. Retrieved 2023-05-14.
 - ^ "Arctica Greeter". Github.
 - ^ "dde-session-ui". Github.
 - ^ LightDM GTK Greeter in Launchpad, Launchpad.net, 29 November 2011, retrieved 2012-12-16
 - ^ "GTK LightDM Greeter for Xubuntu". Github.
 - ^ Mini Greeter Releases, GitHub, retrieved 2022-03-13
 - ^ Hello, Luna Beta 1 | elementary, Elementaryos.org, 2012-11-14, retrieved 2013-05-29
 - ^ "LightDM Greeter for Pantheon". Github.
 - ^ "LightDM Greeter for Qt 5". Github.
 - ^ Slick Greeter Releases, GitHub, retrieved 2020-09-20
 - ^ Antergos Web Greeter 3.0, GitHub, retrieved 2021-07-10
 - ^ Web Greeter 3.4.1 release, GitHub, retrieved 2021-04-10
 - ^ LightDM Webkit Greeter, GitLab, 11 January 2016, retrieved 2020-09-20
 - ^ "Antergos | Your Linux. Always Fresh. Never Frozen". Antergos Linux. Archived from the original on 2019-09-03. Retrieved 2016-08-06.
 - ^ "lightdm-webkit2-greeter - master". doclets.io. Archived from the original on 2016-10-07. Retrieved 2016-08-06.
 - ^ "Antergos/web-greeter". GitHub. Retrieved 2016-08-06.
 - ^ ~lightdm-team/crowd-greeter/trunk (2011-07-27), ~lightdm-team/crowd-greeter/trunk : contents of NEWS at revision 33, Bazaar.launchpad.net, archived from the original on 2022-11-18, retrieved 2013-05-29
 - ^ LightDM Crowd Greeter, YouTube, 2011-09-07, retrieved 2013-05-29
 - ^ Crowd Greeter : "LightDM Development Team" team, Launchpad.net, 2011-09-08, retrieved 2013-05-29
 - ^ Status of LXDE Components, LXDE Team, archived from the original on 17 October 2019, retrieved 17 December 2012
 - ^ Edmundson, David (2012-07-21), LightDM-KDE 0.2.0, Sharpley.org.uk, archived from the original on 2012-12-24, retrieved 2012-08-23
 - ^ Rationales, Static.davidedmundson.co.uk, retrieved 2013-05-29
 - ^ LightDM-KDE File Archive, KDE, archived from the original on 27 October 2017, retrieved 6 June 2013
 - ^ Razor-qt, razorqt-lightdm-greeter, Github.com, retrieved 2012-08-23
 - ^ Leclanche, Jerome (2013-10-30). "[Lxde-list] CALL FOR TESTERS: LXQt now available for testing". sourceforge.net. SourceForge. Retrieved 2016-05-08. 
... For a display manager, SDDM is recommended ...
 - ^ Unity Greeter, Launchpad.net, 31 May 2011, retrieved 2012-12-16
 
External links
[edit]Wikimedia Commons has media related to LightDM.