Quickly Sleep the Display in Mac OS X with a Hot Corner
You can quickly sleep the display of a Mac or immediately start a screen saver by setting up Hot Corners, which are activated just by sliding your cursor into the specified corners of the screen. This is a great way to quickly hide what’s on the display, but also as a way to initiate a screen saver or lock screen, which will then require a password to use the Mac again.
It only takes a moment to configure this, though the settings for Hot Corners has been moved in new versions of Mac OS X to become part of Mission Control. Here’s what you’ll want to do to get this working:
- Launch System Preferences and click on “Mission Control”
- Click on “Hot Corners…” in the lower left corner
- Set the screen corners you want to use to “Put Display to Sleep”
- Close out of System Preferences and test the Hot Corner by sliding your cursor into that screens corner
In the screenshot example, the lower right corner is set to put the display to sleep, while the lower left corner starts the screen saver. Sleeping the display is more akin to turning it off, and the screen just ends up black, but it’s not the same as putting the Mac to sleep.
This feature can also double as a means of immediately locking down the Mac, because the password feature used to enable the OS X lock screen protection functions the same regardless of how the screen is actually locked, whether it’s through a hot corner or a keyboard shortcut. In both cases, so long as you have a password enabled for the lock or screensaver screen, you will need to enter the login credentials again to regain access to the Mac OS X desktop.
Hot Corners work in all versions of OS X, including Mavericks, Mountain Lion, Lion, and Snow Leopard.