KDE Display Manager

{{Short description|Display manager for the windowing systems X11}}

{{Infobox software

|screenshot = Screenshot of the KDE Display Manager.jpg

|caption =

|developer = KDE

|latest_release_version =

|programming_language = C, C++

|operating_system = BSD, Linux, Solaris, other Unix-like

|genre = X display manager

| discontinued = yes

| replaced_by = SDDM

|license = GPL, X11

|website = {{URL|kde.org}}

}}

KDE Display Manager (KDM) was a display manager (a graphical login program) developed by KDE for the windowing systems X11.

KDE Display Manager was based on the source code of X display manager{{cite book

| first = Roderick W.

| last = Smith

| title = CompTIA Linux+ Study Guide

| page = 28

| year = 2009

| isbn = 978-0-470-50384-3

| publisher = Wiley Publishing, Inc.

| location = Indianapolis, Indiana

}} and was the default display manager of the KDE Software Compilation, until it was retired in KDE Plasma 5 in favour of SDDM.{{cite news|last=Larabel|first=Michael|author-link=Michael Larabel|date=3 November 2014|title=SDDM Is The Recommended Display Manager Of KDE Plasma 5|url=https://www.phoronix.com/scan.php?page=news_item&px=MTgyOTU|newspaper=Phoronix|access-date=3 November 2014}}

KDM allowed the user to choose a desktop environment or window manager at login. KDM used the Qt application framework. It is configurable via KDE's System Settings; its appearance can be customized by the user.

The default KDM login screen had a list of users. Each entry was comprised in the user's username, personal name (if available), and an icon. Next to the list is a greeting and a picture. One of the customization options is to replace the picture with an analog clock. From this screen the user can also run a user management tool, shut down or reboot the computer, or restart the X Window System.