Wake up

[CFstorm]

Every once in a while my computer does this awful thing, my computer sleeps then when I wiggle my mouse to have it wake back up....it displays this grey screen, it has woken up, the fans start spinning and stuff but the monitor displays a grey screen slightly lighter...it's just weird. 

 

Thanks in advance, 

[losBaumos]

Maybe u have enabled the energie saving mode?

[Sauron]

It may be a graphics driver crash, what are your specs?