Notebook Win8.1 System Unplug power cable when the black screen what to do

1, 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;

2, adjust the power supply refresh rate;

3, find the lower right corner power, with the right mouse click, select the Power options;

3, find the Change advanced power settings, find the Intel (R) Graphics settings click to 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 Settings using batteries and power supply are set to minimum performance;

After the above method is set up, the Win8.1 system will not have a black screen when the power cord is unplugged.