1.    3 Weeks Ago #1

    Can I extend my desktop and duplicate the extended desktop on 2 screen


    Howdy,

    I have a Dell E6430 Laptop with an Intel HD4000 and an Nvidia NVS 5200M card in it. I can use this laptop in a docking station and run on 2 monitors + the laptop screen for a total of 3 displays.

    What I want to do is have the main desktop on the laptop screen and then extend the desktop to the other two screens so they are identical. Basically duplicating the extended desktop. I need to show a presentation on two screens at once that are facing opposite directions.

    I've gone into Display Properties and tried all the various extend/duplicate type options I could find but wasn't able to accomplish my goal. Does anyone know if this is possible or if Windows doesn't support this? I was able to get the laptop to duplicate to one screen ans extend to the other but couldn't find a way to extend and then duplicate that.

    Hopefully that makes sense.

    UPDATE: Forgot to add that I already have a VGA splitter that I can use that accomplishes the same thing but one of my displays is 100' away and when I connect that cable it makes the other display (a projector) get all wonky and show wavy lines moving through the image which isn't acceptable. SO just trying to do it right from within Windows and the Dock.


    Thanks!
      My System SpecsSystem Spec


  2. Joined : Dec 2016
    Posts : 5
    Windows 10 Home 64bit / Windows 7 Professional 64bit
       3 Weeks Ago #2

    Hi Kelemvor,
    Can you send me a picture for your setup and your settings before we do anything wrong?

    Thanks

    Hassan
      My System SpecsSystem Spec


  3. Joined : Jul 2014
    Serbia
    Posts : 6,963
    All kinds
       3 Weeks Ago #3

    That VGA splitter will just make both monitors show same picture, can't extend two displays like that.
      My System SpecsSystem Spec

  4.    3 Weeks Ago #4

    Not sure what you want a picture of.
    1 Laptop in a docking station
    2 monitors connected to the dock.

    I want to have the main desktop on the laptop and the extended desktop on both of the other screens so they are the same.

    Using a VGA splitter works just fine since then I just choose Extend and it extends to the splitter which shows the same image on both monitors. I just don't want to have to use the splitter.
      My System SpecsSystem Spec


  5. Joined : Jul 2014
    Serbia
    Posts : 6,963
    All kinds
       3 Weeks Ago #5

    Showing same image is not extending, it's same picture on both monitors as far as GPU is concerned, you can have hundred like that using splitters. Extend is when a picture is shown partly one one and partly on other monitor. Duplicate would produce same as splitter does.
      My System SpecsSystem Spec

  6.    3 Weeks Ago #6

    CountMike said: View Post
    Showing same image is not extending, it's same picture on both monitors as far as GPU is concerned, you can have hundred like that using splitters. Extend is when a picture is shown partly one one and partly on other monitor. Duplicate would produce same as splitter does.
    Yes. I know what Extend and Duplicate are. I want to EXTEND the desktop onto one monitor and then DUPLICATE that monitor onto another monitor. 3 displays in all. two are the same, one is not.
      My System SpecsSystem Spec


  7. Joined : Jul 2014
    Serbia
    Posts : 6,963
    All kinds
       3 Weeks Ago #7

    Ah, didn't make sense to me until now. It depends if that dock can do this but you can try extending laptops main (default) display to docking station and let it duplicate the other half of picture.
    Don't know about that GPU but AMD/ATI can make picture distribution like that. It's called Eyefinity.
      My System SpecsSystem Spec


 


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