Aside from hot corners, the newest versions of MacOS also have the advantage of including a keystroke for Lock Screen to instantly lock a Mac, as well as a menu item. Hot Corners work in all versions of MacOS and Mac OS X, including macOS Mojave, High Sierra, El Capitan, Sierra, Yosemite, Mavericks, Mountain Lion, Lion, and Snow Leopard. 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. This screen sleep feature can also double as a means of immediately locking down the Mac, because the password feature used to enable the Mac 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. This contrasts to when the entire Mac itself is put to sleep, which puts the entire computer into a paused sleep state. Basically the display goes to sleep until the Mac is in use again, but the computer itself is ‘awake’ and on the entire time. 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.
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Thus there are two hot corners enabled on this particular Mac setup. 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. Close out of System Preferences and test the Hot Corner by sliding your cursor into that screens corner.Set the screen corners you want to use to “Put Display to Sleep” (or “Start Screen Saver”).Click on “Hot Corners…” in the lower left corner.Launch System Preferences and click on “Mission Control”.
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#Apple snow leopard screensaver how to#
How to Set a Hot Corner to Sleep Display on Mac, or Start Screensaver