Hp pavillion dv5 random black screen

[blackrainbow]

hey guys my friend hp parvillion has began to black screen after about 1 hour of use , it does not shut down the screen goes black and looks like every thing else is working any ideas what to do to fix this issue

[jason2074]

Have you tried running it in safemode or using an external monitor first? http://www.buzzle.com/articles/laptop-screen-goes-black-randomly.html