I am having the Lenovo g560 which is very good to use and I am very happy with that. But there is only one thing that is annoying me and that is the brightness of the screen. Once I start my laptop subsequent to the hibernation then I am not able to control the brightness of it. Once this happens then I need to restart the system and then only I can start it again and control the brightness. This looks very strange but its true in my case. Please tell me that what should I do to avoid this issue. Please reply fast. Thank you.