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Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?

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  • Guy GizmoG Offline
    Guy GizmoG Offline
    Guy Gizmo
    wrote on last edited by
    #1

    In Qt 5.15.2 and earlier, text with periods and commas do not render correctly in macOS Big Sur as reported in this bug report:
    https://bugreports.qt.io/browse/QTBUG-88495

    The bug has been fixed in Qt 5.15.3. However, the app I'm developing is still using Qt 5.9.9 because it needs to support earlier versions of macOS than Qt 5.15 (or 5.12) support.

    Is there any way I can work around this bug in Qt 5.9.9? I'm using the open source license so patching and recompiling Qt is unfortunately not an option.

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      @Guy-Gizmo said in Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?:

      I'm using the open source license so patching and recompiling Qt is unfortunately not an option.

      Why is it not an option ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      Guy GizmoG 1 Reply Last reply
      0
      • SGaistS SGaist

        Hi,

        @Guy-Gizmo said in Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?:

        I'm using the open source license so patching and recompiling Qt is unfortunately not an option.

        Why is it not an option ?

        Guy GizmoG Offline
        Guy GizmoG Offline
        Guy Gizmo
        wrote on last edited by
        #3

        @SGaist said in Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?:

        Why is it not an option ?

        I was under the impression that bundling a modified version of Qt's libraries requires a commercial license. Do correct me if I'm wrong.

        Even so, an ideal workaround for this would be one that does not require me to modify Qt, and instead involves a workaround that's contained entirely within my app. Compiling Qt can be quite the pain!

        jsulmJ 1 Reply Last reply
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        • Guy GizmoG Guy Gizmo

          @SGaist said in Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?:

          Why is it not an option ?

          I was under the impression that bundling a modified version of Qt's libraries requires a commercial license. Do correct me if I'm wrong.

          Even so, an ideal workaround for this would be one that does not require me to modify Qt, and instead involves a workaround that's contained entirely within my app. Compiling Qt can be quite the pain!

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #4

          @Guy-Gizmo said in Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?:

          Do correct me if I'm wrong

          You are. The only thing which is required if you modify Qt - you have to open source your changes in Qt.

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          Guy GizmoG 1 Reply Last reply
          0
          • jsulmJ jsulm

            @Guy-Gizmo said in Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?:

            Do correct me if I'm wrong

            You are. The only thing which is required if you modify Qt - you have to open source your changes in Qt.

            Guy GizmoG Offline
            Guy GizmoG Offline
            Guy Gizmo
            wrote on last edited by
            #5

            @jsulm said in Is there any way I can work around a Big Sur text rendering bug in Qt 5.9.9?:

            You are. The only thing which is required if you modify Qt - you have to open source your changes in Qt.

            Okay, good to know that I have that option. Even so, is there a way of working around this that doesn't involve patching Qt 5.9.9?

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