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  1. Qt
  2. QTBUG-134792

In mixed-DPI setup QMenu displays blank space

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 6.8.1
    • GUI: High-DPI, GUI: Menus
    • None
    • Windows

    Description

      in multiple screen setup, in  2 displays with configuration:
      1. Scale: 125%, Resolution: 1920x1080
      2. Scale: 200%, Resolution: 3840x2160

      There is blank space in the menus (QMenu instances) on the second display (see attached video). It only appears the first time; after that, it looks fine until the next app restart. On the first display, this issue does not occur.

      If I use only one display, there are no issues - the menu looks correct.

      It affects all Qt-based products. I reproduced it in Qt Creator:

      Attachments

        1. menu (1).mp4
          1.06 MB
          Irfan Omair
        2. Screenshot 2025-03-13 164614.png
          25 kB
          Irfan Omair
        3. Screenshot 2025-03-13 164624 (1).png
          58 kB
          Irfan Omair
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            sorvig Morten Sørvig
            irfan.omair@digia.com Irfan Omair
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            Dates

              Created:
              Updated:

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