Suspend to Disk problem when I close my laptop lid
 

Suspend to disk works perfectly on my laptop, Mandrake 9

It creates a suspend image, and the PC turns off.

When I turn it on, it resumes back to my linux (like Window$$$ Hibernate option)

However, when I close the laptop lid, then it doesn't works (the suspend does works, but when I turn the pc on, all I see is a 1% brightness LCD, and I have to restart my machine)

Any ideas?