osx - Lock Mac after N mins of inactivity? - Super User



osx - Lock Mac after N mins of inactivity? - Super User

Use display sleep to save your screen; use the screen saver as a lock.

Let's say you want to prevent burn-in after 3 minutes and lock the computer after 30 minutes.

  1. Go to System Preferences > Energy Saver and set the display sleep time to 3 minutes.
  2. Go to System Preferences > Desktop & Screen Saver and pick a lightweight screen saver (like Flurry). Set it to start after 30 minutes.
  3. Go to System Preferences > Security and make sure "Require password to wake this computer from sleep or screen saver" is turned on.

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