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  1. Qt
  2. QTBUG-79779

QGLWidget on second display not working with high dpi support enabled

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • P1: Critical
    • None
    • 5.12.5, 5.13.2
    • GUI: High-DPI, GUI: OpenGL
    • None
    • Windows 7 64 bit
      Two displays:
      Primary: 3840x2160 (High dpi display)
      Second: 1920x1200 (Full HD Display)

      Windows scaling factor of 150%
    • Linux/X11, Windows

    Description

      Use a QGLWidget in a application and activate high dpi support. Move the window to the second screen. Maximize the window. With QT 5.11.3 everthing is fine. See attached screenshot.

      Doing the same with QT 5.12.5 or 5.13.2 the QGLWidget is broken. See attached screenshot. Further more the menu can not be clicked anymore on the second screen with QT 5.12.5 and after moving the window to the primary screen with QT 5.13.2

      The attached sample program shows the problem.

      Attachments

        1. 5.11.3_fullscreen.PNG
          5.11.3_fullscreen.PNG
          68 kB
        2. 5.13.2_fullscreen.PNG
          5.13.2_fullscreen.PNG
          67 kB
        3. QGLWidget_Bug.zip
          1 kB
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            qt.team.graphics.and.multimedia Qt Graphics Team
            moon99 moon99
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            Dates

              Created:
              Updated:
              Resolved:

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