Hardware: Dell Precision T3500 with dual-displays on Nvidia Quadro NVS 420.

openSUSE 13.2 clean installation with all updates, KDE desktop, nvidia-gfxG03-kmp-desktop-340.76_k3.16.6_2-36.1

Running on a clean home directory, the session gets logged-out after a few minutes of idle time.

I have disabled the screensaver and screen lock from "Configure Desktop".

This did not occur on the same hardware when running openSUSE 13.1

Looking for clues on where to start troubleshooting.