![]() ![]() A password authentication may still be required after waking the screen from display off mode if Required Password Immediately setting is enabled in System Preferences app → Security & Privacy → General. Display turning off after a set duration doesn't automatically locks the screen or puts the system in sleep mode. Lock Screen only restricts unauthorised access to the system and presents the logged-in users login prompt. Is putting my machine in Lock Screen different from waiting for the display to turn off after set duration? Display sleep and lock screen settings doesn't affect the normal operation of network applications. This may happen due to disruption in Internet connectivity. 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. Under both Lock Screen and Turn Display Off mode, all the programs continue to run and update normally. Solid-state drives (SSDs) don’t have moving parts, so this setting doesn’t affect Mac computers that use only SSDs to store data.). However, depending on the configurations in System Preferences app -> Energy Saver, hard disks may be put to sleep (Hard drive motor is powered down when you aren't reading or writing files from the drive. What are the differences between these three modes with regards to how often programs are allowed to update in the background?Īs stated above, all the processes continue to run in the Lock Screen and Turn Display Off mode. Mac goes back to sleep once it's done with the task.) Display and other un-needed hardware components remain turned off. (Power Nap allows your Mac to occasionally wake from sleep to perform tasks such as checking for new email or software updates. Sleep mode behaviour may slightly vary in case of Macs which support Power Nap. ![]() Closing the lid of a portable automatically puts it into sleep mode unless an external display is connected to it. The advantage of this mode is that it's quicker to wake from sleep that starting from a shut down. The display and hard disk are turned off, running process are halted, and any audio/video playback is paused. The computer remains on but consumes less power. ![]() Sleep: Puts the computer into low enrgy consumption mode. If a video playback is currently in progress in a desktop app (QuickTime Player, VLC etc.) the setting is overridden and the display doesn't go to sleep. 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). 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: ![]()
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