Parallels VM - screen res too high, can disable custom scaling

  1. Posts : 1
    Windows 10 Pro build 15063.296

    Parallels VM - screen res too high, can disable custom scaling

    I have a new installation of Windows 10 Pro build 15063.296 running on a Macbook Pro with an external Dell 2416D monitor.

    Windows screen resolution is defaulting to 5120 X 2750 which exceeds my monitor's maximum resolution of 2560 X 1440. If I change the resolution in 'display settings', it changes the window size but does not change the scaling.

    Display Settings > Scale and Layout says a custom scale factor is set. If I try to turn it off and sign out, the settings persist when I log back in.

    How can I resolve? Is this a Windows problem or a Parallels problem?
      My ComputerSystem Spec

  2. jimbo45's Avatar
    Posts : 7,662
    Windows / Linux : Centos, Ubuntu, OpenSuse

    Hi there
    I'm not too sure about parallels but if it follows the usual conventions of running Virtual machines there ought to be some setting in either the config file to specify the resolution of the virtual machine or something in the menu VM like view-->option file "Auto fit Guest" etc.

    I'm using a Windows VM on a Linux machine with VMWARE workstation which works perfectly so I can't give you the various settings on parallels - but try them.

    Look also in the virtual machine config file - there should be one even in parallels and see if there are any settings or google for parallels config file.

    Here's an extract of mine -- the file is (on VMware) a .vmx type file but you should see something like this :

    .encoding = "UTF-8"
    config.version = "8"
    virtualHW.version = "12"
    scsi0.present = "TRUE"
    scsi0.virtualDev = "lsisas1068"
    sata0.present = "TRUE"
    memsize = "2048"
    mem.hotadd = "TRUE"
    scsi0:0.present = "TRUE"
    scsi0:0.fileName = "Windows 10 x64.vmdk"
    sata0:1.present = "TRUE"
    sata0:1.fileName = "/mnt/DV2/Macrium VM/Rescue.iso"
    sata0:1.deviceType = "cdrom-image"
    ethernet0.present = "TRUE"
    ethernet0.virtualDev = "e1000e"
    ethernet0.wakeOnPcktRcv = "FALSE"
    ethernet0.addressType = "generated"
    usb.present = "TRUE"
    ehci.present = "TRUE"
    ehci.pciSlotNumber = "34"
    usb_xhci.present = "TRUE"
    sound.present = "TRUE"
    sound.startConnected = "FALSE"
    sound.virtualDev = "hdaudio"
    sound.fileName = "-1"
    sound.autodetect = "TRUE"
    mks.enable3d = "TRUE"
    svga.graphicsMemoryKB = "1048576"
    pciBridge0.present = "TRUE"
    pciBridge4.present = "TRUE"
    pciBridge4.virtualDev = "pcieRootPort"

    etc etc ...

      My ComputerSystem Spec


Related Threads
Source: High-DPI Scaling Improvements for Desktop Applications in the Windows 10 Creators Update - Building Apps for Windows See also: Change Compatibility Mode Settings for Apps in Windows 10 - Windows 10 Apps Features Tutorials
I have recently started using a Lenovo Yoga 460 for work and the display running at 1920*1080 is completely unusable (far too small for the kind of stuff I need to display on screren). I therefore run at 125-150 % magnification which for the most...
High DPI scaling in General Support
Hey, I bought a 4k screen yesterday and I have this annoying issue with scaling. In 100% I can't see anything, so the solution is windows scaling. The issue is that a lot of programs doesn't work well with this method and makes the app almost...
I'm running a 4K display at 3840x2160 so I've set my custom scaling level to 150%. Once in a while when I wake the system up and unlock my session the icons are shrunk (probably down to 100%). If I log out and log in again I'm back to normal. ...
Hi guys, i really hope that here someone can help me. I'm trying for 2 days to get windows 10 works corrrectly with dpi scaling but nothing. After installation everything is fine but after a while, and some programs installed, something goes wrong. ...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 19:29.
Find Us