Fixing DPI Scaling Issues in Skype for Business on Windows 10

My setup for my day job these days is a Surface Pro 4 and either an LG 34UC87M-B or a Dell P2715Q monitor, depending on where I’m working. This is a fantastic setup, but some applications have trouble dealing with the high pixel density and don’t scale appropriately.

One case in point is Skype for Business. For some reason it scales correctly as I move between the Surface screen and the external monitor when I use the Dell, but on the LG monitor Skype is either massive on the external monitor, or tiny on the Surface screen.
After a big of digging around I came across a solution that worked for me, which is to change a setting in Skype’s manifest file (who knew there was one?). On my machine the file is here:
C:Program FilesMicrosoft OfficeOffice16LYNC.EXE.MANIFEST
And the setting in question is this:
<dpiAware>True/PM</dpiAware>
Which I changed to this:
<dpiAware>False/PM</dpiAware>
Note that you’ll probably have to edit the file as administrator in order to be able to save it.
Once I made that change, saved the file, and restarted Skype, it now scales correctly for both the Surface screen and the external LG monitor.

20 thoughts on “Fixing DPI Scaling Issues in Skype for Business on Windows 10

  1. Turns out this didn't work after a reboot, even though the settings file stayed the same. It does work fine on the Dell monitor, but isn't happy on the LG for some reason.

  2. Try this in addition to your change in the manifest file:
    Go to HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionSideBySide
    Make a new DWORD named PreferExternalManifest and set the value to 1

  3. Found something that's working for me at this point — we'll see if it sticks.

    1. Change the LYNC.EXE.MANIFEST file, set to True (I took out the /PM bit)
    2. In regedit, find the lync.exe HIGHDPIAWARE key in HKEY_CURRENT_USERSOFTWAREMicrosoftWindows NTCurrentVersionAppCompatFlagsLayers and delete it.
    3. Change the permissions on HKEY_CURRENT_USERSOFTWAREMicrosoftWindows NTCurrentVersionAppCompatFlagsLayers so your account doesn't have write access. This way the key won't get rewritten.
    4. Restart Skype

    Found the solution here: https://www.skypefeedback.com/forums/299913-generally-available/suggestions/9572103-skype-for-business-in-latest-2016-preview-still-no

  4. This is crazy, Microsoft handles both of these software packages (Skype for Business and Powerpoint) and they can't fix this issue for multiple versions of the OS and over 4 years of reported issues. I have no other third party software that has scaling issues between monitors of different resolution. Come on Microsoft!!

  5. The combination of solutions worked for me.
    1. Make the change in the Lync manifest as stated above. (Change to False)

    2. Make the change to the registry as stated above.
    Go to HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionSideBySide
    Make a new DWORD named PreferExternalManifest and set the value to 1

    Thank you both for these steps. It WORKED!

  6. A computer virus is perilous and detrimental which easily infiltrate into your system and corrupt your all important files. This orney infection has been developed by cyber crooks which sole motive to extort a huge amount of money to deceive the victims. This vicious threat is switching your browser to the other malicious domains. It encrypts your files or documents and demand for ransom. This peril virus forces the victims to pay the ransom and to buy unique decryption key to restore your files. It also injects malicious codes in the registry directory which makes your PC sluggish and degrade your system functionality.It is mandatory to remove it from PC.

    For read more information:
    http://www.virusspywaredesinstalacion.com
    http://www.comerimuoverevirus.com
    http://www.deinstallierenwindowsmalware.com
    http://www.freemalware-removal.com

  7. Let me explain the basic principle how most Forex systems work. They are tuned up to work in a specific market condition. They often make money in a trending market, but loose money in a choppy market. It is not a problem as long as the market is trending and the system is making more money than it loses. Such a system can be profitable for several months and you would be happy with it. BUT…

    PREPARE FOR THE WORST…

    Market change over time. A well designed system starts with trend analysis to stay away from potentially losing trades. There are two problems of how a Forex system recognizes the trend.

    PROBLEM: FALSE "STRONG TREND" INDICATION.

    The system responds only to immediate price action. An explosive price movement that is usually the result of news release is tempting people to jump in and make a profit. It looks like a "strong trend", but what usually happens next is a hard fall.

    To avoid falling into this trap, check for the SOLUTION to find a REAL trend:

    SECOND PROBLEM: TREND RELIABILITY

    Most systems use various indicators to determine the trend. Actually, there is nothing bad about using indicators. One Simply Moving Average can do the job. The problem comes with the question: "Is the market trending NOW?" Whether the market is trending or not trending is not like black and white. The correct question is: "How well the market is trending?"

    And here we have something called TREND RELIABILITY.

    Trends exist and they can be traded up and down for a profit. You have to focus only on the most reliable market trends. "Forex Trendy" is a software solution to find the BEST trending currency pairs, time frames and compute the trend reliability for each Forex chart:

  8. Hi,

    After the basic settings and deploying in IIS getting this error. Any help?

    HTTP Error 500.0 – Internal Server Error
    scriptProcessor could not be found in application configuration

    Most likely causes:
    IIS received the request; however, an internal error occurred during the processing of the request. The root cause of this error depends on which module handles the request and what was happening in the worker process when this error occurred.
    IIS was not able to access the web.config file for the Web site or application. This can occur if the NTFS permissions are set incorrectly.
    IIS was not able to process configuration for the Web site or application.
    The authenticated user does not have permission to use this DLL.
    The request is mapped to a managed handler but the .NET Extensibility Feature is not installed.

    Things you can try:
    Ensure that the NTFS permissions for the web.config file are correct and allow access to the Web server's machine account.
    Check the event logs to see if any additional information was logged.
    Verify the permissions for the DLL.
    Install the .NET Extensibility feature if the request is mapped to a managed handler.
    Create a tracing rule to track failed requests for this HTTP status code. For more information about creating a tracing rule for failed requests, click here.

    Detailed Error Information:
    Module FastCgiModule
    Notification ExecuteRequestHandler
    Handler DictionaryEditor Handler
    Error Code 0x80070585
    Requested URL http://localhost:8009/
    Physical Path C:a_sourceDictionaryEditorDictionaryEditor
    Logon Method Anonymous
    Logon User Anonymous

    More Information:
    This error means that there was a problem while processing the request. The request was received by the Web server, but during processing a fatal error occurred, causing the 500 error.
    View more information »

    Microsoft Knowledge Base Articles:

    294807

Leave a Reply

Your email address will not be published. Required fields are marked *