Windows 10: Can't duplicate screens

Discus and support Can't duplicate screens in Windows 10 Graphic Cards to solve the problem; I have an Asus desktop with a 1920x1080 monitor and a 1920x1080 TV monitor connected to a GTX560Ti graphic board with 385.41 driver. I can only extend... Discussion in 'Windows 10 Graphic Cards' started by ruggb, Aug 26, 2017.

  1. RUGGB
    ruggb Win User

    Can't duplicate screens


    I have an Asus desktop with a 1920x1080 monitor and a 1920x1080 TV monitor connected to a GTX560Ti graphic board with 385.41 driver. I can only extend them, I can't duplicate them. There is no Duplicate option.
    The same thing happens on my Asus 1920x1080 laptop when I connect it to a projector. Very inconvenient.
    If I connect the desktop or laptop to a lower res monitor, I can duplicate them, or extend them.
    I have a 1600x900 and a 3200x 1800 laptop that will duplicate on a projector.
    How do I make the 1920x1080 duplicate on the TV or projector?

    :)
     
    ruggb, Aug 26, 2017
    #1
  2. EVANSTOCK
    evanstock Win User

    Windows 10 Not Recognizing Second Monitor

    Also, connected with a vga splitter. The monitor works, but only as a duplicate screen, in can't get the computer to detect it to use as a second screen.
     
    evanstock, Aug 26, 2017
    #2
  3. CHOINON
    ChOiNoN Win User
    Laptop to HDMI TV monitor unable to use "Duplicate" mode?

    Did you solve this problem? I also can't connect to TV on Duplicate mode Can't duplicate screens :((, hdmi only works on extend or 2nd screen mode
     
    ChOiNoN, Aug 26, 2017
    #3
  4. DUDE
    Dude Win User

    Can't duplicate screens

    Did you try from the settings, display options?

    Can't duplicate screens [​IMG]
     
    Dude, Aug 26, 2017
    #4
  5. DUDE
    Dude Win User
    You can also try from the NCP

    Can't duplicate screens [​IMG]
     
    Dude, Aug 26, 2017
    #5
  6. RUGGB
    ruggb Win User
    Thanks Dude
    The answer is that you can't duplicate if the ports do not come off the same GPU on some computers.
    On the desktop, I had the TV connected to the iGPU port (because it was a VGA port) and the monitor connected to the eGPU DVI port. Connecting the TV to the other eGPU port (via adapter) solved the problem -- so I actually started thinking. -- The problem was that they were connected to 2 different GPUs. I was connecting the TV to the laptop via the HDMI port. That is apparently a different GPU since I connected it to the VGA port and it works like it should. The confusion was, I previously connected the laptop to a projector via the VGA and HDMI ports and had no luck. Guess I just need to try again. I believe I had my HP and my Dell connected to the projector via the display port and VGA port on the HP and the HDMI on the Dell (it has no VGA) and both duplicated. The HP is an i7 with external GPU also and the Dell is an i5. But at this point I am not sure of anything.
    thanks again
     
    ruggb, Apr 5, 2018
    #6
Thema:

Can't duplicate screens

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