Software:Simple Desktop Display Manager

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Simple Desktop Display Manager
Original author(s)Abdurrahman Avci
Developer(s)Abdurrahman Avci, KDE, LXQt, Liri[1]
Initial release19 March 2013; 13 years ago (2013-03-19)[2]
Written inC++, QML
PlatformUnix-like
TypeX display manager
LicenseGPL-2.0-or-later[3]

Simple Desktop Display Manager (SDDM) is a display manager (a graphical login program) for the X11 and Wayland windowing systems.[4] SDDM was written from scratch in C++11 and supports theming via QML.[5]

SDDM is free and open-source software subject to the terms of the GNU General Public License version 2 or later.[3]

Adoption

In 2013, Fedora KDE members decided to default to SDDM in Fedora 21.[6]

KDE chose SDDM to be the successor of the KDE Display Manager for KDE Plasma 5.[7][8] In 2023, KDE forked SDDM to form the basis of the new Plasma Login Manager, which will become KDE's default login manager starting with Plasma 6.6.[9][10]

The LXQt developers recommend SDDM as a display manager.[11]

See also

  • LightDM, Light display manager, formerly written for Ubuntu, now independent
  • GDM, the default graphical login program for GNOME

References

  1. ↑ Pier Luigi Fiorini (2014). "plfiorini's blog". http://plfiorini.blogspot.com/2014/10/maui-using-kde-frameworks-5.html. 
  2. ↑ "Release v0.1.0". GitHub. 19 January 2013. https://github.com/sddm/sddm/releases/tag/v0.1.0. 
  3. ↑ 3.0 3.1 "README.md". https://github.com/sddm/sddm/blob/develop/README.md. 
  4. ↑ "0.12.0-Release-Announcement". https://github.com/sddm/sddm/wiki/0.12.0-Release-Announcement. 
  5. ↑ "SDDM: A Lightweight QML-Based Display Manager". 19 January 2013. https://www.phoronix.com/scan.php?page=news_item&px=MTI3ODc. 
  6. ↑ Rex Dieter (26 November 2013). "Rex's Blog". http://rdieter.blogspot.com/2013/11/sddm-change-pushed-back-to-fedora-21.html. 
  7. ↑ "Display Managers In Plasma 5". 3 November 2014. http://blog.davidedmundson.co.uk/blog/display_managers_finale. 
  8. ↑ Larabel, Michael (3 November 2014). "SDDM Is The Recommended Display Manager Of KDE Plasma 5". Phoronix. https://www.phoronix.com/scan.php?page=news_item&px=MTgyOTU. 
  9. ↑ "# A Roadmap for a modern Plasma Login Manager" (in en). 2025-03-26. https://planet.kde.org/david-edmundson-2025-03-26-a-roadmap-for-a-modern-plasma-login-manager/. 
  10. ↑ "Fedora 44 Will Be the First Distro to Adopt KDE's Plasma Login Manager" (in en). 2026-01-07. https://itsfoss.com/news/fedora-44-plasma-login-manager/. 
  11. ↑ Leclanche, Jerome (2013-10-30). "[Lxde-list CALL FOR TESTERS: LXQt now available for testing"]. SourceForge. https://sourceforge.net/p/lxde/mailman/message/31580081/. "... For a display manager, SDDM is recommended ..." 



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