Laptop screen not working

[RAVI KIRAN]

hi,I have lenovo ideapad y550 laptop. my laptop display was not working,when I switched on...however laptop is switching on,bus display is blank...plz help me...

 

[Ranger12]

A quick test you can do to see if the screen has a problem is to plug an external monitor into the notebook. If the external monitor displays something then I would say the screen has a problem.

 

[terry5880]

do u mean the screen is now working all on its own or working from an external monitor