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  1.    27 Jan 2015 #1
    Join Date : Jan 2015
    Posts : 5
    Windows 10 tech preview

    Win 10 not seeing multiple monitors


    The OS does not see my second monitor in device manager. Is there a fix?
      My ComputerSystem Spec
  2.    28 Jan 2015 #2
    Join Date : Oct 2014
    Posts : 940
    Windows 8.1, Win10Pro

    I had the same problem until I installed AMD drivers. Only then did I get to use both screens.
      My ComputerSystem Spec
  3.    28 Jan 2015 #3
    Join Date : Jan 2015
    Posts : 5
    Windows 10 tech preview
    Thread Starter

    Quote Originally Posted by Mark Phelps View Post
    I had the same problem until I installed AMD drivers. Only then did I get to use both screens.
    I tried that several times. I get a message "There was a problem installing updates, but we'll try again later". Now what?
      My ComputerSystem Spec
  4.    29 Jan 2015 #4
    Join Date : Jul 2014
    Serbia
    Posts : 10,607
    W10 Insider + Linux

    Don't use MS drivers, download and install appropriate drivers from AMD.
      My ComputersSystem Spec
  5.    29 Jan 2015 #5
    Join Date : Dec 2013
    Cheshire, England
    Posts : 1,424
    Windows 10 Pro x64

    Is your 2nd monitor connected to a PC (with graphics card? what graphics card?).
    I have a 2nd monitor running attached to my laptop via the d-sub output and that worked flawlessly (Extended and Duplicate).

    -Jamie
      My ComputerSystem Spec
  6.    29 Jan 2015 #6
    Join Date : Jan 2015
    Posts : 5
    Windows 10 tech preview
    Thread Starter

    Thanks for the reply. I have the AMD Raedon 7560. I have tried it both ways. Downloaded the AMD detection tool. Downloaded the correct AMD driver. Device manager shows error 43: Windows has stopped this device because it has reported problems. (Code 43). Neither method, MS or AMD drivers work. Waiting for a solution but it appears MS may not get to this one anytime soon.
      My ComputerSystem Spec
  7.    29 Jan 2015 #7
    Join Date : Dec 2013
    Cheshire, England
    Posts : 1,424
    Windows 10 Pro x64

    What about trying to install it in compatibility mode?

    Right click the .exe and select properties, then select the Compatibility tab and tick the option to run in compatibility mode and choose windows 8.

    Click image for larger version. 

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    Does this help at all?

    -Jamie
    Last edited by JDobbsy1987; 29 Jan 2015 at 10:57.
      My ComputerSystem Spec
  8.    29 Jan 2015 #8
    Join Date : Nov 2013
    Toronto
    Posts : 4,660
    Win 10 Pro x64

    Mine is an older AMD Radeon 5450 and the driver was automatically updated during the first update after installing 9926.



    Both the on-board and the add-on graphics card are running at the same time so I have 4 monitors running.
      My ComputerSystem Spec
  9.    29 Jan 2015 #9
    Join Date : Jul 2014
    Serbia
    Posts : 10,607
    W10 Insider + Linux

    You can also try to completely uninstall and cleanup drivers with: Download Display Driver Uninstaller - MajorGeeks in safe mode and then reinstall AMD drivers.
    Just one more thing, your monitors would not be both with VGA inputs, would they ? Those GPUs can't handle two VGA outputs at same time.
      My ComputersSystem Spec
  10.    29 Jan 2015 #10
    Join Date : Jan 2015
    Posts : 5
    Windows 10 tech preview
    Thread Starter

    Main monitor is DVI, #2 is VGA. Jamie, how do I get to that compatibility mode form?
      My ComputerSystem Spec

 
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