Installing ubuntu in sony vaio laptop

[spchaubal]

I have a sony vaio laptop(model-VPCCW27FX) 64 bit.I am currently using windows 7 os.I tried installing ubuntu using wubi and also by making a bootable disc.The installation proceeds well.When I restart my laptop, it asks whether to start windows or ubuntu.But, when I select ubuntu, the screen goes blank.Please suggest a solution.

[bcbc]

http://ubuntuforums.org/showthread.php?t=1613132

If you have an nvidia card, use nomodeset. See post #8 for wubi related boot options.

PS if you use wubi avoid updating packages grub-pc / grub-common (http://ubuntuforums.org/showthread.php?t=1639198)