LightDM

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 User Interface,[6] also called Greeters.[7] It also supports Wayland.[8][9]

LightDM
LightDM in elementaryOS with its default "Pantheon Greeter 5.0" front-end
Original author(s)Robert Ancell
Developer(s)
  • Robert Ancell
  • David Edmundson
Initial releaseSeptember 10, 2010 (2010-09-10)
Stable release
1.30.0[1]  / 17 May 2019 (17 May 2019)
Repository
Written inC
Operating systemLinux, OpenIndiana
Size1 MB
Available in>50 languages[2][3][4]
TypeX display manager
LicenseGPL-3.0-or-later
Websitegithub.com/CanonicalLtd/lightdm

LightDM is the default display manager for Edubuntu, Xubuntu and Mythbuntu since 11.10 release,[10][11][12] for Lubuntu since 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

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
LightDM Greeters in active development
NameKey feature(s)VersionWebsite
Arctica GreeterGreeter for Arctica,[20] fork of Unity Greeter0.99.1.4[21]github.com/ArcticaProject/arctica-greeter
Deepin GreeterGreeter for Deepin5.0.0[22]github.com/linuxdeepin/dde-session-ui
GTK GreeterGreeter for Xubuntu and former GTK reference implementation,[23] former Lubuntu default,[13] Xubuntu default[11]2.0.8[24]github.com/Xubuntu/lightdm-gtk-greeter
Mini GreeterMinimalist, single-user. INI configuration0.5.1[25]github.com/prikhi/lightdm-mini-greeter
Pantheon GreeterGreeter for elementary OS[26]3.3.1[27]github.com/elementary/greeter
Qt5 GreeterGreeter for Qt 50.11.1[28]github.com/rezso/lightdm-qt5-greeter
Slick GreeterGreeter for Linux Mint, fork of Unity Greeter1.4.1[29]github.com/linuxmint/slick-greeter
WebEngine GreeterQtWebEngine-based, C++ rewrite of Web Greeter 3.0—github.com/matijaskala/lightdm-webengine-greeter
Web GreeterQtWebEngine-based, continuing Antergos Web Greeter 3.0,[30] allows to create web based themes3.0.0[31]

github.com/JezerM/web-greeter

WebKit2 GreeterEasy theming[6]2.0.0[32]gitlab.com/tearch-linux/applications-and-tools/lightdm-webkit2-greeter
Dormant LightDM Greeters
NameKey feature(s)VersionWebsite
Antergos Web GreeterDefault greeter for Antergos.[33] Uses HTML/Javascript for theming[34]2.2.5[35]github.com/Antergos/web-greeter
Crowd GreeterDemonstration for an OpenGL-based Greeter[36][37]0.0.2[38]launchpad.net/crowd-greeter
GTK Builder GreeterAn alternative implementation from LXDE for GTK based on GtkBuilder featuring WYSIWYG theme editing with Glade Interface Designer.0.2.0[39]lxde.git.sourceforge.net/git/gitweb.cgi?p=lxde%2Fldm-gtk-builder-greeter%3Ba%3Dsummary
KDE GreeterPlasma 4 integration,[40][41] Kubuntu default[15] until superseded by SDDM[16]0.3.2.2[42]github.com/KDE/lightdm
LXQt GreeterQt-only Greeter for LXQt desktop (formerly Razor Greeter[43]) until superseded by SDDM[44]0.7github.com/surlykke/qt-lightdm-greeter
Qt GreeterReference implementation in Qt—launchpad.net/lightdm-qt-greeter
Unity GreeterFormer Ubuntu default[6]15.04.3[45]launchpad.net/unity-greeter

See also

References
  1. "Release 1.30.0". 17 May 2019. Retrieved 18 May 2019.
  2. "Translations: Light Display Manager". Translations.launchpad.net. 2011-05-13. Retrieved 2013-05-29.
  3. "Translations: LightDM GTK Greeter". Translations.launchpad.net. 2013-05-08. Retrieved 2013-05-29.
  4. "Translations: Unity Greeter". Translations.launchpad.net. 2012-01-24. Retrieved 2013-05-29.
  5. The Light Display Manager (LightDM), retrieved 17 May 2011
  6. Ubuntu 11.10 To Switch From GDM To LightDM, 12 May 2011, retrieved 18 May 2011
  7. Fischer, Matt (2012-02-07). "» So You Want to Write a LightDM Greeter… Matt Fischer's Blog". Mattfischer.com. Retrieved 2013-05-29.
  8. "Readme Manual of LightDM". GitHub.
  9. "Arch Linux Wiki".
  10. Ubuntu 11.10 ReleaseNotes, Canonical, retrieved 28 May 2012
  11. Xubuntu 11.10 Release Notes, Canonical, retrieved 17 December 2012
  12. https://wiki.ubuntu.com/BionicBeaver/ReleaseNotes
  13. Lubuntu 12.04 ReleaseNotes, Canonical, retrieved 14 Jun 2012
  14. https://blueprints.launchpad.net/lubuntu-next/+spec/1610-qt-greeter
  15. RFC] Merging LightDM into KDE Workspaces, mail.kde.org, retrieved 2013-05-29
  16. 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.
  17. New features in Linux Mint 18.2 Cinnamon (go down or search for LightDM), retrieved 2017-07-02
  18. Ubuntu adopts LightDM, login screens to get more exciting, Geek.com, 12 May 2011, archived from the original on 15 August 2012, retrieved 18 May 2011
  19. LightDM, or: an examination of a misunderstanding of the problem, 12 May 2011, retrieved 14 July 2015
  20. https://arctica-project.org/
  21. "Arctica Greeter". Github.
  22. "dde-session-ui". Github.
  23. LightDM GTK Greeter in Launchpad, Launchpad.net, retrieved 2012-12-16
  24. "GTK LightDM Greeter for Xubuntu". Github.
  25. Mini Greeter Releases, GitHub, retrieved 2022-03-13
  26. Hello, Luna Beta 1 | elementary, Elementaryos.org, 2012-11-14, retrieved 2013-05-29
  27. "LightDM Greeter for Pantheon". Github.
  28. "LightDM Greeter for Qt 5". Github.
  29. Slick Greeter Releases, GitHub, retrieved 2020-09-20
  30. Antergos Web Greeter 3.0, GitHub, retrieved 2021-07-10
  31. Web Greeter 3.0.0 release, GitHub, retrieved 2021-08-02
  32. LightDM Webkit Greeter, GitLab, retrieved 2020-09-20
  33. "Antergos | Your Linux. Always Fresh. Never Frozen". Antergos Linux. Archived from the original on 2019-09-03. Retrieved 2016-08-06.
  34. "lightdm-webkit2-greeter - master". doclets.io. Archived from the original on 2016-10-07. Retrieved 2016-08-06.
  35. "Antergos/web-greeter". GitHub. Retrieved 2016-08-06.
  36. ~lightdm-team/crowd-greeter/trunk (2011-07-27), ~lightdm-team/crowd-greeter/trunk : contents of NEWS at revision 33, Bazaar.launchpad.net, retrieved 2013-05-29
  37. LightDM Crowd Greeter, YouTube, 2011-09-07, retrieved 2013-05-29
  38. Crowd Greeter : "LightDM Development Team" team, Launchpad.net, 2011-09-08, retrieved 2013-05-29
  39. Status of LXDE Components, LXDE Team, retrieved 17 December 2012
  40. 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
  41. Rationales, Static.davidedmundson.co.uk, retrieved 2013-05-29
  42. LightDM-KDE File Archive, KDE, retrieved 6 June 2013
  43. Razor-qt, razorqt-lightdm-greeter, Github.com, retrieved 2012-08-23
  44. 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 ...
  45. Unity Greeter, Launchpad.net, retrieved 2012-12-16
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