How to permanently fix Black screen after boot in 12-04 having intel graphic card

view story

http://askubuntu.com – I have installed ubuntu 12.04 in dual mode with windows 7. The screen goes black after the initial boot. I have tried editing grub in the initial boot by typing i915.modeset=0 and it works, but how can I do it permanently? I am using HP G62 laptop with intel HD graphics. (HowTos)