Configuring Energy Saver features

Energy Saver features put your computer and monitor into sleep mode whenever they are inactive for a defined period of time. However, if the monitor is in sleep mode for more than five minutes, you must wait at least 10 minutes for the monitor to warm up before you can calibrate it.

The MV calibration tool checks for stability. If a sufficient warm-up time has not been achieved, calibration will not be successful.

To avoid this delay, disable sleep mode. You can use Energy Saver features to automatically start the computer each day, at least 10 minutes before you expect to calibrate the monitor.

Note: If the lock at the bottom of the Preferences window is closed, click the lock and then type the administrator user name and password to unlock the account.

1. Choose Apple > System Preferences (macOS 12) or System Settings (macOS 13 and up).

   1. macOS 12
      1. Go to Apple > System Preferences > Energy Saver.
      2. Set the Turn display off after sliding scale to Never.
      3. Select the Prevent computer from sleeping automatically when the display is off check box.
      4. Clear the Put the hard disk(s) to sleep when possible check box.

      5. Click Schedule.

      6. Select the Start up or wake check box, select the day or days and type the time of day when you want the computer to automatically start.
         Note: Ensure that the time you select for Start is at least 10 minutes before the time when the monitor will be used for proofing color.

      7. Click OK.

      8. Click the lock to prevent additional changes to the settings.

      9. Close the Energy Saver window.

   2. macOS 13 and up
      1. Go to Apple > System Settings > Lock Screen.
      2. Set Turn display off on power adapter when inactive to Never.
      3. Go to Apple > System Settings > Screen Time, and turn it on.
      4. Go to Downtime.
      5. Turn the Downtime switch ON.
      6. In the Schedule drop-down, select Every Day.
      7. Select the time of day when you want the computer to automatically start and stop.
         Note: Ensure that the time you select for Start is at least 10 minutes before the time when the monitor will be used for proofing color.