(sorry for y bad english !)
How can i use x11vnc on my server and only i can only see server-desktop, the user with physical monitor see blank screen or lock screen ?
like this option in teamviwer : http://j.mp/15yZAWI
"Now connect to this remote computer. You can check whether a black screen is being displayed on the display of the remote computer by choosing Actions → Show Black Screen in the TeamViewer toolbar. Sometimes this entry is not enabled even if you had enabled the black screen in its properties. If so, you can explicitly enable black screen for this remote session by choosing Actions → Show Black Screen option."