Win8.1 notebook Unplug the power cord when the black screen solution

Through analysis, because the laptop plug in power and unplug the power of the brush screen rate settings are not the same, but we can use the following settings to resolve.

The first step: Right click on the desktop, select the screen resolution, choose the senior settings. This is the brush frequency of the computer. Set the two to be uniformly 60HZ or 50HZ;

Step Two: Adjust the refresh rate of the power supply. Locate the power supply in the lower right corner, right-click, select the Power option, locate the change plan settings, find the change advanced power settings, and locate the Intel (R) Graphics settings click Expand. If your first choice is 60HZ, set the Intel (r) Graphics settings to use both the battery and the power on to maximum performance. If your first choice is 50HZ, put Intel (R) Graphics The settings are set to minimum performance using both the battery and the power-on power. This is illustrated below: