(In reply to Ronny Peine from comment #5) Hello Ronny, Sorry for the delay, here is my test report: 1. I checked with openSUSE -> Settings -> Settings Manager -> Screensaver -> Disable Screen Saver that the screen saver was disabled. 2. Since there is an xscreensaver process running, I killed it with command "killall xscreensaver" and checked that it was no longer running. 3. In an xfce terminal I entered the command "xset dpms force standby". 4. Both monitors blank for 1 second and then the previous display returns without any action by me. I repeated this three times and always saw the same result. While the monitors are blank, they continue to show the blue power light. 5. I checked that the screen saver was still disabled, and that xscreensaver was not running. Roger