Say no signal when i am connecting laptop to tv please help..

[justinkan]

My lenovo laptop is connected to sony bravia 28 inch tv says no signal. I connected my laptop to another TV It works fine
But my camera connected to sony bravia it works.why my laptop is not connected to sony bravia please help

 

[digitaldoc]

How is the laptop connected to the TV? HDMI cable? When you connected the laptop to the other TV, did you use the same settings, and the same cable?