Got a Mac Book Pro and set up so the Laptop screen is the secondary display, (the one with out the menu) and my monitor is the primary.

The monitor is connected to an KVM switch. When I switch to another computer the lap top will after a few minutes dim then do the screen saver. I do not want it to dim.

There's the thing, with the Lap top connected and the KVM connected to the LT, if I do a restart on the LT then it doesn't dim?

I have experienced the same thing at work and home.