First of all, this question requires some terminology.

  • I'll refer to the Lock Screen as the screen you see when you lock the screen.

  • I'll refer to the Login Screen as the screen you see after a restart before you login.

This answer gives a great method for changing the Login Screen background image. I've found other sources that give the same answer. However I've not found any way to change the Lock Screen background image to be something different from the Desktop's background image. Is there a way to do that?

Furthermore, when I choose Logout [user], I see what I have called the Lock Screen, not the Login Screen as I would expect. Is this the intended behavior?

  • When I hit  > Log Out <user>... I see a popup dialog, not a full-screen modal interface. Did they recently change that, or am I clicking something else?
    – SilverWolf
    Commented Jan 6, 2019 at 16:00
  • Oops, never mind. Ignore my previous comment. (:
    – SilverWolf
    Commented Jan 11, 2019 at 0:09

1 Answer 1


Mojave will use the desktop image from your first desktop on the lock screen.

The easiest way to change the lock screen to something else is to add a desktop, and drag it to be the first desktop and change it to what you want the lock screen to be.

  • Right. I want to be able to change the lock screen without changing the desktop image. Commented Feb 22, 2019 at 18:06

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