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  1. Qt
  2. QTBUG-106711

Qt DPI scaling issue under Windows 10

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Details

    • Bug
    • Resolution: Unresolved
    • P3: Somewhat important
    • None
    • 6.3.2
    • GUI: High-DPI
    • None
    • Windows 10 Pro for Workstations 21H2 (19044.2006)
    • Windows

    Description

      Several Qt widgets fail to respect DPI scale changes until the user logs out or reboots the system.

       

      This issue appears to manifest in all Qt based applications, including Qt Creator itself.

      "Fusion" styled apps appear to be equally effected.

       

      To duplicate the issue:

      1) Ensure Qt Creator is not running.

      2) Change desktop DPI scale (e.g. from 125% to 175%).

      3) Start Qt Creator (see attached "image1.png" for affected widgets).

      4) Close Qt Creator.

      5) Logout or reboot system.

      6) Restart Qt Creator again.

      7) Widgets now appear to scale correctly (see "image2.png").

       

      Attachments

        1. Image1.png
          Image1.png
          139 kB
        2. Image2.png
          Image2.png
          140 kB

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            People

              sorvig Morten Sørvig
              retrocode Lee Westlake
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              Dates

                Created:
                Updated: