Computer Starts,screen wont turn on until I open and close lid x3

Hi everyone, i have tried looking around to find a solution to this but have had no luck. I even went into the genius bar but he couldn't replicate the problem.

Basically, about 80% of the time i start the laptop, nothing will display, the computer starts, lights on keyboard turn on ect. I leave it for a few minutes, then close the lid, open the lid (to induce sleep mode and wake up) and do this until finally the screen comes on and i can use it.

I have tried re-formatting and installing the whole thing from scratch, Pram reset, tried fixing permissions, searched online... Even when i am using it and its been working for a while, if it goes to turn the screen off when say 5 mins of inactivity, the screen wont turn on. I plug in an external monitor and that will show, but not the laptop screen...

I have installed Windows as well to test it, and the same issue occurs. Even when initially starting the laptop, often i wont even see the startup screen. Sometimes i will see the startup screen but when it gets to loading the operating system it will be blank until i do the lid open and close ect...

Has anyone found a solution to this?

My MacPro lappy is a mid 2009 model. Any help would be greatly appreciated.

Thank you.