LOGIND.CONF(5)

NAME
logind.conf, logind.conf.d - Login manager configuration files

SYNOPSIS

/etc/elogind/logind.conf

/etc/elogind/logind.conf.d/*.conf

DESCRIPTION

These files configure various parameters of elogind.

OPTIONS

All login options are configured in the "[Login]" section, system sleep options are configured in the "[Sleep]" section.

The file /etc/elogind/sleep.conf and the files in /etc/elogind/sleep.conf.d/*.conf only have a "[Sleep]" section.

KillUserProcesses=
    Takes a boolean argument. Configures whether the processes of a user should be killed when the user logs out. If true, the processes listed in their session cgroup will be terminated. If false, the session cgroup is ignored but see the options KillOnlyUsers= and KillExcludeUsers= below.

    Note that setting KillUserProcesses=yes will break tools like screen(1) and tmux(1), unless they are moved out of the session scope.

KillOnlyUsers=, KillExcludeUsers=
    These settings take space-separated lists of usernames that override the KillUserProcesses= setting. A user name may be added to KillExcludeUsers= to exclude the processes in the session cgroups of that user from being killed even if KillUserProcesses=yes is set. If KillExcludeUsers= is not set, the "root" user is excluded by default. KillExcludeUsers= may be set to an empty value to override this default. If a user is not excluded, KillOnlyUsers= is checked next. If this setting is specified, only the processes in the session cgroups of those users will be killed. Otherwise, users are subject to the KillUserProcesses=yes setting.

IdleAction=
    Configures the action to take when the system is idle. Takes one of "ignore", "poweroff", "reboot", "halt", "kexec", "suspend", "hibernate", "hybrid-sleep", "suspend-then-hibernate", and "lock". Defaults to "ignore".

    Note that this requires that user sessions correctly report the idle status to the system. The system will execute the action after all sessions report that they are idle, no idle inhibitor lock is active, and subsequently, the time configured with IdleActionSec= (see below) has expired.

    Added in version 198.

IdleActionSec=
    Configures the delay after which the action configured in IdleAction= (see above) is taken after the system is idle.

    Added in version 198.

InhibitDelayMaxSec=
    Specifies the maximum time a system shutdown or sleep request is delayed due to an inhibitor lock of type "delay" being active before the inhibitor is ignored and the operation executes anyway. Defaults to 5.

UserStopDelaySec=
    Specifies how long to keep the user record around for a user after they logged out fully. If set to zero, the user is terminated immediately when the last session of the user has ended. Defaults to 10s.

    Added in version 240.

HandlePowerKey=, HandlePowerKeyLongPress=, HandleRebootKey=, HandleRebootKeyLongPress=, HandleSuspendKey=, HandleSuspendKeyLongPress=, HandleHibernateKey=, HandleHibernateKeyLongPress=, HandleLidSwitch=, HandleLidSwitchExternalPower=, HandleLidSwitchDocked=
    Controls how logind shall handle the system power, reboot and sleep keys and the lid switch to trigger actions such as system power-off, reboot or suspend. Can be one of "ignore", "poweroff", "reboot", "halt", "kexec", "suspend", "hibernate", "hybrid-sleep", "suspend-then-hibernate", and "lock". If "ignore", elogind will never handle these keys. If "lock", all running sessions will be screen-locked; otherwise, the specified action will be taken in the respective event. Only input devices with the "power-switch" udev tag will be watched for key/lid switch events.

    HandlePowerKey= defaults to "poweroff", HandleRebootKey= defaults to "reboot", HandleSuspendKey= defaults to "suspend", HandleHibernateKey= defaults to "hibernate", HandlePowerKeyLongPress= defaults to "ignore", HandleRebootKeyLongPress= defaults to "poweroff", HandleSuspendKeyLongPress= defaults to "hibernate", HandleHibernateKeyLongPress= defaults to "ignore". HandleLidSwitch= defaults to "suspend". HandleLidSwitchExternalPower= is completely ignored by default (for backwards compatibility) — an explicit value must be set before it will be used to determine behaviour. HandleLidSwitchDocked= defaults to "ignore". If the system is inserted in a docking station, or if more than one display is connected, the action specified by HandleLidSwitchDocked= occurs; if the system is on external power the action (if any) specified by HandleLidSwitchExternalPower= occurs; otherwise the HandleLidSwitch= action occurs.

    A different application may disable logind's handling of system power and sleep keys and the lid switch by taking a low-level inhibitor lock ("handle-power-key", "handle-suspend-key", "handle-hibernate-key", "handle-lid-switch", "handle-reboot-key"). This is most commonly used by graphical desktop environments to take over suspend and hibernation handling, and to use their own configuration mechanisms. If a low-level inhibitor lock is taken, logind will not take any action when that key or switch is triggered and the Handle*= settings are irrelevant.

    Added in version 184.

PowerKeyIgnoreInhibited=, SuspendKeyIgnoreInhibited=, HibernateKeyIgnoreInhibited=, LidSwitchIgnoreInhibited=, RebootKeyIgnoreInhibited=
    Controls whether actions that elogind takes when the power, reboot and sleep keys and the lid switch are triggered are subject to high-level inhibitor locks ("shutdown", "reboot", "sleep", "idle"). Low level inhibitor locks ("handle-power-key", "handle-suspend-key", "handle-hibernate-key", "handle-lid-switch", "handle-reboot-key"), are always honored, irrespective of this setting.

    These settings take boolean arguments. If "no", the inhibitor locks taken by applications are respected. If "yes", "shutdown", "reboot" "sleep", and "idle" inhibitor locks are ignored. PowerKeyIgnoreInhibited=, SuspendKeyIgnoreInhibited=, HibernateKeyIgnoreInhibited= and RebootKeyIgnoreInhibited= default to "no". LidSwitchIgnoreInhibited= defaults to "yes". This means that when elogind is handling events by itself (no low level inhibitor locks are taken by another application), the lid switch does not respect suspend blockers by default, but the power and sleep keys do.

    Added in version 190.

HoldoffTimeoutSec=
    Specifies a period of time after system startup or system resume in which elogind will hold off on reacting to lid events. This is required for the system to properly detect any hotplugged devices so lid events can be ignored if external monitors or docks are connected. If set to 0, elogind will always react immediately, possibly before the kernel fully probed all hotplugged devices. This is safe, as long as you do not care for devices that have been plugged or unplugged while the system was off. Defaults to 30s.

    Added in version 220.

RuntimeDirectorySize=
    Sets the size limit on the $XDG_RUNTIME_DIR runtime directory for each user who logs in. Takes a size in bytes, optionally suffixed with the usual K, G, M, and T suffixes, to the base 1024 (IEC). Alternatively, a numerical percentage suffixed by "%" may be specified, which sets the size limit relative to the amount of physical RAM. Defaults to 10%. Note that this size is a safety limit only. As each runtime directory is a tmpfs file system, it will only consume as much memory as is needed.

    Added in version 211.

RuntimeDirectoryInodesMax=
    Sets the limit on number of inodes for the $XDG_RUNTIME_DIR runtime directory for each user who logs in. Takes a number, optionally suffixed with the usual K, G, M, and T suffixes, to the base 1024 (IEC). Defaults to RuntimeDirectorySize= divided by 4096. Note that this size is a safety limit only. As each runtime directory is a tmpfs file system, it will only consume as much memory as is needed.

    Added in version 246.

InhibitorsMax=
    Controls the maximum number of concurrent inhibitors to permit. Defaults to 8192 (8K).

    Added in version 230.

SessionsMax=
    Controls the maximum number of concurrent user sessions to manage. Defaults to 8192 (8K). Depending on how the pam_elogind.so module is included in the PAM stack configuration, further login sessions will either be refused, or permitted but not tracked by elogind.

    Added in version 230.

RemoveIPC=
    Controls whether System V and POSIX IPC objects belonging to the user shall be removed when the user fully logs out. Takes a boolean argument. If enabled, the user may not consume IPC resources after the last of the user's sessions terminated. This covers System V semaphores, shared memory and message queues, as well as POSIX shared memory and message queues. Note that IPC objects of the root user and other system users are excluded from the effect of this setting. Defaults to "yes".

    Added in version 212.

StopIdleSessionSec=
    Specifies a timeout in seconds, or a time span value after which elogind checks the idle state of all sessions. Every session that is idle for longer then the timeout will be stopped. Defaults to "infinity" (elogind is not checking the idle state of sessions). For details about the syntax of time spans, see elogind.time(7).

    Added in version 252.

DelegateSessionCgroups=
    Takes a boolean argument. If enabled, and if the unified cgroup v2 hierarchy is used, elogind creates a user-owned per-session cgroup subtree. Session processes are placed in a session/ leaf cgroup below the session cgroup, while a delegated/ cgroup is created for user-managed subgroups. The per-session cgroup itself remains empty of processes, so that cgroup v2 controllers may be enabled below it without violating the cgroup v2 no-internal-processes rule.

    For example, with this option enabled, the cgroup layout for session SESSION is:

        /sys/fs/cgroup/SESSION/
            session/
            delegated/

    The /sys/fs/cgroup/SESSION/ subtree, including session/ and delegated/, is owned by the session user. Processes started by the session are placed in session/. The user may create and manage subgroups below delegated/, and may move processes there as permitted by the kernel's cgroup v2 delegation rules.

    This option is disabled by default. When disabled, elogind keeps the traditional per-session cgroup layout and does not create the additional session/ and delegated/ subgroups.

    Enabling this option delegates cgroup management for the session subtree to the logged-in user. The administrator enabling this option is responsible for deciding whether this is appropriate for the system and for any user-level service manager or other software that makes use of the delegated cgroup subtree.

SEE ALSO

elogind(8), loginctl(1), sleep.conf(5),