Hello, ubuntu users!
I need some help.

First, Sorry about that my english awful.
I'm korean, I'm not speaking english!

The question is how can i fix video tearing on nvidia geforce with kubuntu.
I using the nvidia geforce gt640.

I know that fix method by gnome.
But i don't know how do i fix by unity and kde composite.

So, i'm used application xbmc.

I wonder of fix method by nvidia geforce with ubuntu and kubuntu.

Thanks! I look forward the answer.