Windows 10: Different Window scaling with dual monitors

Discus and support Different Window scaling with dual monitors in Windows 10 Customization to solve the problem; I'm running Windows 10 on a Dell Optiplex PC with primary monitor a Lenovo 24" 1920x1080. When I connect to my Samsung 55" 4K LED TV as a second... Discussion in 'Windows 10 Customization' started by David P. Vancouver, Aug 1, 2020.

  1. Different Window scaling with dual monitors


    I'm running Windows 10 on a Dell Optiplex PC with primary monitor a Lenovo 24" 1920x1080. When I connect to my Samsung 55" 4K LED TV as a second Extended monitor, also @1920x1080 resolution, the wallpaper and icons scale perfectly. i.e. the 1920x1080 photo exactly fills both monitors. But when I drag any window from the Lenovo to the Samsung, it takes up a much larger portion of the Samsung screen than it does on the Lenovo. What can I do to get the two to scale the windows the same?

    :)
     
    David P. Vancouver, Aug 1, 2020
    #1
  2. DaveM121 Win User
    DaveM121, Aug 1, 2020
    #2
  3. Dual monitors with different DPI settings do not give correct scaling

    An issue with DPI scaling arises when using two different scaling factors. The screen with the lower DPI display is fuzzy/blurred (most easily seen in text).

    Hardware and settings

    These are the hardware and settings involved:

    • 1x primary 3840x2160 27" monitor with DPI scaling set to 150% (because regular text is unreadable at 27").
    • 1x secondary 1920x1080 24" monitor with DPI scaling set to 100%, displaying blurry text and images at these settings.
    Workarounds

    When I use the same DPI scaling on both monitors the display shows correctly. This gives two undesirable workarounds:

    • Setting 100% DPI scale on the UHD screen fixes display, but makes text unreadably small on this monitor.
    • Setting 150% DPI scale on the HD screen fixes display, but makes text so large I barely have any screen space left on this monitor.
    Is there per chance a better solution to this problem? Is this a Windows bug or am I using DPI scaling in the wrong way?

    EDIT: Here's the system info from dxdiag just in case.

    ------------------

    System Information

    ------------------

    Time of this report: 11/14/2015, 13:09:59

    Machine name: -

    Operating System: Windows 10 Pro 64-bit (10.0, Build 10240) (10240.th1_st1.151104-1714)

    Language: Dutch (Regional Setting: Dutch)

    System Manufacturer: To Be Filled By O.E.M.

    System Model: To Be Filled By O.E.M.

    BIOS: BIOS Date: 07/09/14 21:30:44 Ver: 04.06.05

    Processor: Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (8 CPUs), ~3.5GHz

    Memory: 8192MB RAM

    Available OS Memory: 8112MB RAM

    Page File: 5936MB used, 3454MB available

    Windows Dir: C:\WINDOWS

    DirectX Version: 12

    DX Setup Parameters: Not found

    User DPI Setting: Using System DPI

    System DPI Setting: 144 DPI (150 percent)

    DWM DPI Scaling: Enabled

    Miracast: Available, with HDCP

    Microsoft Graphics Hybrid: Not Supported

    DxDiag Version: 10.00.10240.16384 64bit Unicode
     
    Herman Groenenboom, Aug 1, 2020
    #3
  4. Different Window scaling with dual monitors

    Dual monitors with different DPI settings do not give correct scaling

    Hello Herman,

    Thank you for visiting Microsoft Community and providing us with the detailed description about the issue.

    As per the description, I understand that you are experiencing issue with dual monitors with different DPI settings do not give correct scaling on the system.

    I certainly understand your concern and will try my best to help you.

    I would suggest you to refer to the suggestions provided by
    “Sangeeta Sarkar” replied on July 29, 2015 in the following Microsoft Community link and check if that helps.

    Blurry text and icons in Windows 10 (DPI scaling)

    Also, I would suggest you to refer to the suggestions provided by
    “Vivian Samartha” replied on February 13, 2014 in the following Microsoft Community link and check if that helps.

    Windows 8.1 DPI Scaling

    Note: The above article holds good for Windows 10 as well

    Note:
    This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection,
    back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:



    How to back up and restore the registry in Windows

    For reference:

    I would suggest you to refer to the article give below and check if that helps.

    Understanding Screen Scaling issues

    Understanding Screen Scaling Issues - Win32 apps

    I hope this information is helpful.

    Please do let us know if you need any further assistance, we will be glad to assist you.

    Thank you.

    Jayant
     
    Jayant Gupta, Aug 1, 2020
    #4
Thema:

Different Window scaling with dual monitors

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