Screen
Menu path: Setup > System > Power Options > Display
In this area, you can configure screen settings which can help to reduce energy consumption.
Display Power Management Settings
- Handle Display Power Management: - ☑ You can configure energy saving settings separately for battery or AC operation. (default) - ☐ You cannot configure energy saving settings. 
- Standby Time: Number of minutes after which the screen switches to standby mode if the user is inactive. (default: 6 minutes) 
- Suspend time: Number of minutes after which the screen switches to suspend mode if the user is inactive. (default: 8 minutes) 
- Off Time: Number of minutes after which the screen switches off if the user is inactive. (default: 10 minutes) 
Brightness Reduction
The brightness reduction controls have been added specifically for use of laptops. They have no effect on other devices connected to the power supply.
- On inactivity reduce to: Specify to how many percent the screen brightness should be reduced if you are not using the device for battery and AC operation. (default for battery: 20%, default for AC operation: 80%) 
- Reduce after: Specify a time between 10 and 120 seconds after which the screen brightness will be reduced for battery and AC operation. (default: Never) 
