NVIDIA Quadro FX 1500 drivers installed
KDE enviroment
Activate Dual Head Mode - Selected
“Activated in Xinerama mode with 1920 x 1200”
Activated 3D Acceleration - Selected
When I exit sax2 and do the “TEST” I see blue background on both screens. But when X-server restarts monitor #2 remains black back ground.
I have had my best luck by only setting up the first monitor through sax (so as to start with a clean xorg.conf), and then use the Nvidia settings utility to set up the multi-monitor configuration from there. You may want to try that to see if it makes a difference for you.