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Fonts disappear when mouse is connected on embedded RPi4, QT5.12.3

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  • M Offline
    M Offline
    mewster
    wrote on last edited by mewster
    #1

    I'm having a strange issue when I start a QLM application with a mouse connected: all the fonts disappear. If I attach the mouse while the application is already running, the issue is not present.

    I'm using Qt5.12.3, with Pi4's KMS drivers.

    Before trying to run any other test app (since I can't at the moment) I wanted to ask if it's an already known issue.

    Thanks in advance

    jsulmJ 1 Reply Last reply
    0
    • M Offline
      M Offline
      mewster
      wrote on last edited by
      #4

      https://stackoverflow.com/questions/47182068/input-and-fonts-are-mutually-exclusive-on-eglfs-qpa
      https://bugreports.qt.io/browse/QTBUG-64377

      Solved removing the "AA_EnableHighDpiScaling" flag.

      1 Reply Last reply
      1
      • M mewster

        I'm having a strange issue when I start a QLM application with a mouse connected: all the fonts disappear. If I attach the mouse while the application is already running, the issue is not present.

        I'm using Qt5.12.3, with Pi4's KMS drivers.

        Before trying to run any other test app (since I can't at the moment) I wanted to ask if it's an already known issue.

        Thanks in advance

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #2

        @mewster said in Fonts disappear when mouse is connected on embedded RPi4, QT5.12.4:

        all the fonts disappear

        Where do they disappear? Or do you mean text in your app disappears?

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

        M 1 Reply Last reply
        0
        • jsulmJ jsulm

          @mewster said in Fonts disappear when mouse is connected on embedded RPi4, QT5.12.4:

          all the fonts disappear

          Where do they disappear? Or do you mean text in your app disappears?

          M Offline
          M Offline
          mewster
          wrote on last edited by
          #3

          @jsulm Every text disappears, numbers too.

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          • M Offline
            M Offline
            mewster
            wrote on last edited by
            #4

            https://stackoverflow.com/questions/47182068/input-and-fonts-are-mutually-exclusive-on-eglfs-qpa
            https://bugreports.qt.io/browse/QTBUG-64377

            Solved removing the "AA_EnableHighDpiScaling" flag.

            1 Reply Last reply
            1

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