Package i3lock

Simple X display locker like slock

https://i3wm.org/i3lock/

i3lock is a simple screen locker like slock. After starting it, you will see a
white screen (you can configure the color/an image). You can return to your
screen by entering your password.

Many little improvements have been made to i3lock over time:

- i3lock forks, so you can combine it with an alias to suspend to RAM (run
  "i3lock && echo mem > /sys/power/state" to get a locked screen after waking up
  your computer from suspend to RAM)

- You can specify either a background color or a PNG image which will be
  displayed while your screen is locked.

- You can specify whether i3lock should bell upon a wrong password.

- i3lock uses PAM and therefore is compatible with LDAP etc. On OpenBSD i3lock
  uses the bsd_auth(3) framework.
General Commands
Command Description
i3lock improved screen locker