Win7 sleep wake up the computer but the screen has been black screen is not bright solution

Win7 sleep wake up the computer but the screen has been black screen is not bright solution

1, right click on the desktop "Computer", select "Device Manager" option in the menu bar;

2, into the "Device Manager" interface, click on the bottom of the Open "network adapter";

3, right click on the local network card driver, select the "Properties" option;

4, into the Network Card Properties dialog box, click on the top "power management";

5, the "Allow this device wake-up computer" option in front of the check off;

6, set up, click to open the computer below the "Start Menu", find the "Run" option, click Open

7, in the Running dialog box Input cmd command Click OK, enter the DOS interface

8, in the command line interface Input POWERCFG-A command, click OK, view the current power usage status