KDED4(8)							 KDE User's Manual							  KDED4(8)

NAME

       kded4 - KDE daemon - triggers Sycoca database updates when needed.

SYNOPSIS

       kded4 [--help] [Generic options] [Qt-options] [KDE-options] [--check]

DESCRIPTION

       kded4 is responsible for creating the sycoca file, i.e. the binary cache of servicetypes, mimetypes, and services for a particular user.

       It monitors the directories containing .desktop files. When a file is added/removed, it waits 5 seconds (in case of a series of updates),
       and then launches kbuildsycoca4 to update the sycoca.

       It checks newly installed update files, i.e. the *.upd files used to update configuration files of users when the configuration file
       formats changes.  kconf_update is launched to do the updates.

       When the hostname changes, it will make the necessary changes to the KDE environment and X-server to allow continued proper operation,
       launching kdontchangethehostname to do the changes.

       Those tasks are also performed always at kded4 start to ensure that the user configuration is up to date.

       It is also responsible for launching the on-demand kded4 modules and init enabled kded4 modules like:

       Konqueror Browser Preloader
	   Reduces Konqueror startup time.

       Directory Watcher
	   Monitors directories for changes.

       Hardware Detection
	   Provides a user interface for hardware events.

       SSL Certificate Policy
	   Provides the user configured SSL certificate policy to applications.

       Network Proxy Configuration
	   Automatic proxy configuration.

       Password Caching
	   Temporary password caching, for example: so that a webpage with HTTP authentication doesn't ask for your password for every link and
	   every image in the page. These passwords are forgotten when exiting KDE (unlike KWallet)

       Sound Policy
	   Provides the sound system policy to applications.

       Favicons
	   Stores website icons.

       Display Management
	   Manages displays and video outputs.

       Cookie jar
	   Stores network cookies.

       Network Watcher
	   Keeps track of the network and updates directory listings of the network:/ KIO slave.

       Subversion Module
	   Provides various subversion actions to filemanager and other software.

       Network Status
	   Tracks status of network interfaces and provides notifications for applications using the network.

       Write Daemon
	   Watches the messages from local users sent with write(1) or wall(1).

       Notification area watcher
	   Keeps track of applications that want to use the D-Bus based notification area.

       KMixD
	   KMixD Mixer Service

       Systemtray daemon
	   Keeps track of applications that want to use the D-Bus based system tray.

       Keyboard Daemon
	   Keeps track of keyboard changes (new keyboard, changed layout)

       Remote URL Change Notifier
	   Provides change notifications for network folders

       Activity Manager
	   The Nepomuk activities manager backend

       Display Management change monitor
	   Notifies how the display has been rotated (where available)

       Free Space Notifier
	   Warns when running out of space in your home folder.

       Removable Device Automounter
	   Automatically mounts devices as needed.

       Nepomuk Search Module
	   Helper module for KIO to ensure automatic updates of Nepomuk search listings.

       Power Management
	   Battery, Display and CPU power management and notifications.

       K Remote Control Daemon
	   Manages the Remote Control commands received

       Status Notifier Manager
	   Manages services that provide status notifier user interfaces.

       DNS-SD Service Discovery Monitor
	   Monitors the network for DNS-SD services.

       Drive Ejector
	   Automatically unmounts and releases drives when their eject button is pushed.

       Time zone
	   Provides access to the system's time zones for applications.

       Input Actions
	   Input Actions service performing configured actions on key presses.

       The init modules can be enabled/disabled using systemsettings, in System Administration > Startup and Shutdown > Service Manager.

GENERIC OPTIONS

       --author
	   Show author information.

       --help
	   Show help about options.

       --help-all
	   Show all options.

       --help-kde
	   Show KDE specific options.

       --help-qt
	   Show Qt specific options.

       --license
	   Show license information.

       -v --version
	   Show version information

APPLICATION OPTIONS

       --check
	   Check Sycoca database only once.

USAGE

       If kded4 is called without parameters and is already running, it shows the message:

	   KDE Daemon (kded) already running.

       If kded4 is called with kded4 --check, then it updates the KDE sycoca using kbuildsycoca4.

SEE ALSO

       kdeoptions(7), qtoptions(7), kbuildsycoca4(8)

BUGS

       There are probably tons of bugs. Use bugs.kde.org[1] to report them.

AUTHORS

       David Faure <faure@kde.org>
	   Author.

       Waldo Bastian <bastian@kde.org>
	   Author.

NOTES

	1. bugs.kde.org
	   http://bugs.kde.org

KDE 4.5 							    2010-10-28								  KDED4(8)