Other hardware components remain on and processes continue to run. Turn Display Off: Only the display (built-in as well as connected) is turned off. However, the display sleep is not performed after lock screen if video playback is in progress by a desktop app. Lock screen invokes display sleep after a few seconds as a possible optimization technique by macOS. Any running processes continue to run, and any audio/video playback remains in progress. Locking the screen keeps the computer and all the processes running with the display remaining on. Lock Screen: Locks the screen and shows the login prompt with the name of the logged-in user displayed along with the password field. Let's briefly survey them again, one by one: However, the observed behaviour may vary as these operations work in conjunction with other setting configured in System Preferences app → Energy Saver. The three distinct operations do exactly as the name suggests. My question is, what are the differences between these three modes with regards to how often programs are allowed to update in the background? Is putting my machine in Lock Screen different from waiting for the display to turn off after set duration? Programs and videos running in the background turn off when the machine enters this mode. Sleep Mode: Triggered by pressing the Sleep button on the Touch Bar, selecting the Sleep command in Apple Menu, or closing the lid. Programs and videos running in the background seem to continue running in this mode.

Turn Display Off: Triggered by leaving the portable idle for a set number of minutes (as configured in System Preferences → Energy Saver). Slack), sometimes my messages are not updated upon waking the computer and I need to manually refresh or wait for a while. However, if I have a chat program running (e.g.

The screen turns off after a short time and programs and videos running in the background continue running in this mode, at least for a while. Lock Screen: Triggered by pressing the Lock Screen button on the Touch Bar or selecting the Lock Screen command in Apple Menu. There are three different types of sleep states that a Mac Notebook (MacBook/MacBook Air/MacBook Pro) can go into:

Shut off screen saver mac