I'm runing Kali v1.0.1 amd64 installed on hdd.
If it is meather, I installed KDE using:

 apt-get install kde-full
and fully uninstalled GNOME using:

 apt-get remove --purge gnome*
Now I want to fully disable screen saver, but don't know how. I tried several methods and comands taken from my friend Google, but everytime when I am watching a movie or flash video on net, screen goes to decrease brightnes after a few minutes. No, screen doesn't go full to sleep, but those litle brightnes decreases are anoying also.

Does anybody know to tell me: How to fully disable screen saver, or auto brightnes decrease, or whatever.

Sorry cause bad English, thanks in advance.