The display must turn off after 20 minutes of inactivity when the system is plugged in.

From Windows 8 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

SV-48314r1_rule The display must turn off after 20 minutes of inactivity when the system is plugged in.

Vulnerability discussion

Turning off an inactive display supports energy saving initiatives.

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Fix text

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Power Management -> Video and Display Settings -> "Turn Off the Display (Plugged In)" to "Enabled" with "1200" seconds or less.

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