Logind (part of systemd) can be configured to emit events on in response to the lid being closed, sleeping, the power button being pressed, etc.

These events though, are simple D-Bus events, and don't actually run anything. You need some form of wrapper to listen to these events, and run you screen lockers, etc.

That's where this app comes in. This simple app changes the interface presented: it handles the lock and sleep events, and starts the lock.target sleep.target systemd targets respectively.

Note that systemd already have a sleep.target, however, that's a system-level target, and your user-level units can't rely on it. The one included in this package does not conflict, but rather compliments that one.

• Download the latest release.
• tar xf v1.0.0
• cd systemd-lock-handler-1.0.0/
• sudo make install

You should service files for anything you intend to intend to run on lock. For example, enabling this service file would run slock:

[Unit]
Description=A simple X screen locker
Requisite=xorg.target

[Service]
ExecStart=/usr/bin/slock
ExecStopPost=/usr/bin/systemctl --user start unlock.target

[Install]
WantedBy=lock.target

Keep in mind that, for this to work a few steps need to be taken:

• Enable this service systemctl --user enable -- nowsystemd-lock-handler.service.
• Edit /etc/systemd/logind.conf and set HandleLidSwitch=lock. By default, logind has the insane behaviour of suspending on lid close. This makes it merely emit a lock event.

• Enable this service systemctl --user enable -- nowsystemd-lock-handler.service.

systemd-lock-handler is licensed under the ISC licence. See LICENCE for details.