laptop screen stays black

Sanjay07

Honorable
Jun 25, 2013
3
0
10,510
I have purchased new dell laptop
with Win 8 64 bit, 4 gb DDR3 , 1 Tb HDD , 2gb graphics card
When I closed laptop lid and reopen it after about 7 to 8 hour it stays black. Is it any hardware problem or settings problem? What should I do? Please help!
 

Sanjay07

Honorable
Jun 25, 2013
3
0
10,510


It didn't help me. I've already checked power settings of the lid, I didn't click any options for sleep the laptop when it's plugged in.