Quick update for users who face issues as mentioned below
Consider the following scenario. You have a portable computer that runs Windows 7, Windows Vista, Windows Server 2008 R2, or Windows Server 2008. You put the computer to sleep (S3) while the computer’s lid is open. Then, you close the lid while the computer is asleep. Later, you open the lid to wake up the computer.
In this scenario, the computer starts resuming. However, you only see a blank screen and a mouse pointer until you provide some user input. For example, this situation lasts until you press a key or click the mouse.
Microsoft is providing a hot fix for the above situation for which you need to make a request here. You will be given secured username password to download it wich expires soon so make sure you dont forget to download first.