Welcome to LQ!
Linux on Laptops and
TuxMobil are where people post reviews
of their notebook computers, and how they got them working.
And you should always check
Google <Linux> for answers.
Also, there is the
Linux HCL (LinuxQuestions.org Hardware
Compatibility List). Those are the resources you should use to
start your search. I know this is a whole new world to you, so
read
How To Ask Questions The Smart Way, which will teach
you where to search, and how to post the proper information
so that someone can actually give you technical advice rather
than having to ask you questions to get to first base.
So, that's what I'm going to do ... point you down the right path,
and give you one clue:
- Which driver is your computer using for the video card?
After you've done a little homework with this help, you can
post back and we can give you more help.
I suggest you also put the version of Debian and the kernel
you're using somewhere in either your LQ UserCP or in the
sig of your profile.