i3lock - 2.15-1+b1 main

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.
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i3lock forks so you can combine it with an alias to suspend to RAM.
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You can specify either a background color or a PNG image which will be
displayed while your screen is locked.
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You can specify whether i3lock should bell upon a wrong password.
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i3lock uses PAM and therefore is compatible with LDAP etc.