Coherence with multiple monitors all apps are black boxes

Discussion in 'Installation and Configuration of Parallels Desktop' started by JoacimW1, Oct 18, 2017.

  1. JoacimW1

    JoacimW1 Bit poster

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    it work when I use full screen on all displays but if I change to use Coherence is only show black boxes where the application is.

    My hardware is MacBook Pro 15" 16 gig ram. running virtual windows 10 version 1703.
    Screen Shot 2017-10-18 at 10.44.18.png
    Regards Joacim
     
  2. Meenakshi@Parallels

    Meenakshi@Parallels Pro

    Messages:
    450
    Hello JoacimW1, please shut down Windows (as opposed to simply suspending it; see http://bit.ly/1OfR3td for details), open the virtual machine configuration window (refer to http://bit.ly/1eQU5lF for assistance), navigate to Hardware -> CPU & Memory and allocate 2 processors (or just 1 if the total number of available processors is just 2) and 2 GB of memory for Windows [or just 1 GB if total Mac memory is only 2 GB (or) 3 GB if total Mac memory is 8 GB (or) 4 GB if total Mac memory is > 8 GB]. Then, select 'Graphics' and allocate 1 GB of video memory for Windows. Finally, ensure that 'Vertical Synchronization' is enabled and 'DirectX 9' is selected for '3D Acceleration' under 'Advanced Settings' and close the window. Thanks!
     
  3. JoacimW1

    JoacimW1 Bit poster

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    3
    Hi after following your advice I get this error. Screen Shot 2017-10-18 at 14.06.17.png
     
  4. JoacimW1

    JoacimW1 Bit poster

    Messages:
    3
    If I change to directx 10 it works. question should I really only use 4gb memory and 2 cpu when the computer have 8 cpu and 16 gb ram? I am running sql server, visual studio and other demanding software under windows?
     

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