Thank you Jonathan for your participation. But i only want the same workflow like a second device is wired. A hoped its possible to configure a second xorg-server or a fakedevice/-monitor that kde recognize this and you could use this as second desktop in same way as in dualscreen-modus. So i ask a lot of people the last days and ok, maybe tis solution seems unavailable without deeper knowhow. Thank you all. J Am 20.01.2016 um 21:50 schrieb Jonathan Billings: > On Wed, Jan 20, 2016 at 08:49:02PM +0100, Joey wrote: >> Virtual Display have different meanings. >> >> i need a solution like a dualscreen. i want to move with mouse windows >> from one screen to the other. and i need that i can stream the 2. screen >> for example with ffmpeg. with ffmpeg i can stream a part of the desktop >> (also the second screen) >> >> i try to use the panning function of x-server. but with panning (desktop >> larger then monitor) the controlpanels and widget of the screen are >> resized and spread to the whole desktop. after resize a lot of >> preferences are destroyed :-( > It sounds like what you want to do is use Xdmx (xorg-x11-server-Xdmx > package) with maybe x11vnc on the system hooked up to the projector. >