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Set Screen Saver to Run at Login Window of Mac OS

Check tutorial of How to Set a Screen Saver to Run at the Login Window of Mac OS X

So after a lot of requests from our users here is a guide about How to Set a Screen Saver to Run at the Login Window of Mac OS X.

The default Mac startup login screen is pretty boring by default, and although it can be spruced up up with a custom wallpaper is another option to set a screen saver to run in the login window of OS X. This requires using a standard command string entered at the command line, which then makes the screen saver visible in the login window of OS X, as well as the global login screen when all users are logged out of the Mac.

There are some limitations on the types of screen savers you can use, but overall it is fairly flexible and supported in almost all semi-modern versions of OS X, from Snow Leopard to Mavericks. All of the picture slideshow screensavers work, and some of the Quartz Composer screensavers do too, but third-party screensavers are not supported, including RSS feeds, iPhoto-based slideshows, or iTunes artwork. That may sound a bit limited, but you still have some good options available including Floating, Flip-up, Reflections, Origami, Shifting Tiles, Arabesque, Shell, Flurry and Message.

Launch the Terminal, found in / Applications / Utilities / to get started.

1: Define the idle time for the login screen saver

First you need to define an idle time before the login screen saver appears, the syntax for this is as follows:

sudo defaults write /Library/Preferences/com.apple.screensaver loginWindowIdleTime 60

The number at the end is the idle time in seconds, so in the example above, 60 means the screen saver will start after one minute of inactivity. You can set it to be more or less aggressive according to your preferences.

2: Choose which screen saver you want to display in the Mac login window

Now you want to set the actual screen saver yourself. Remember there are some restrictions that are allowed, but we’ll make it simple with four examples that work without incident. Copy and paste each of these commands into the terminal to set it up, the sudo prefix means you need to enter an administrator password for the command to work.

Set the floating message as the login screen saver in OS X

This is probably the most useful screen saver option for large deployments of Macs and public machines in general:

sudo defaults write /Library/Preferences/com.apple.screensaver loginWindowModulePath “/ System / Library / Screen Savers / FloatingMessage.saver”

If you are going to use the Message screen saver, you must set a custom message in the Screen Saver preference pane, otherwise it will default to the computer name of the Mac.

Set a screen saver for the login window in Mac OS X.

Set Arabesque as the login screen saver

sudo defaults write /Library/Preferences/com.apple.screensaver loginWindowModulePath “/ System / Library / Screen Savers / Arabesque.qtz”

Set Shell as the screen saver for the login window

sudo defaults write /Library/Preferences/com.apple.screensaver loginWindowModulePath “/ System / Library / Screen Savers / Shell.qtz”

Set Flurry as the login screen saver

sudo defaults write /Library/Preferences/com.apple.screensaver loginWindowModulePath “/ System / Library / Screen Savers / Flurry.saver”

You’ll want to log out and back in for the change to take effect, you can then test it by logging out or rebooting and letting the Mac remain idle for the allotted time. If the screen saver doesn’t activate automatically, you may have entered the wrong syntax, so double check that the path is correct and that the command syntax is correct and entered on a single line in the Terminal.

Thanks to Nor Eddine for passing this on trick from Apple on the OSXDaily Facebook wall.

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How to Set a Screen Saver to Run at the Login Window of Mac OS X: FAQ

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What is actual time in which this method complete?

The time to complete the How to Set a Screen Saver to Run at the Login Window of Mac OS X tutorial is 10+ minutes.

What are the supported Device?

Apple

What are the supported Operating system?

mac OS


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