Dual Monitor in KDE 4.5.1
Just note for self.
If you use a laptop with intel graphic cards with openSUSE 11.3 and KDE 4.5.1 as your Desktop Environment, you might find a problem when you are setting a Dual Monitor up. Apparently, KDE Display and KRandR can not understand that my external LCD is not my primary output. KRandR consistently configures my laptop monitor as external monitor, although it identifies correctly. After searching for answers (and found out that I am not alone 
), I found that you have to use xrandr command manually to set the primary monitor.
So in general, you connect your external monitor, let KDE Display identify it, set the resolution and run this command in your console to set your laptop monitor as the primary monitor:
xrandr –output LVDS1 –primary
Note: LVDS1 is the name of my laptop monitor, replace it with your monitor’s identified name.
And your done.
I have to use terminal/console to set that? linuxsux. *kabur*
Bah!
) Unfortunately yes, to set your laptop monitor as primary output 
)