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Failed Text Rendering Upon Switching to EGLFS

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  • C Offline
    C Offline
    corruptedsyntax
    wrote on last edited by
    #1

    A project I'm working on recently changed from Wayland to EGLFS to integrate camera hardware into our platform. A problem we're running into is that for some reason upon switching to EGLFS all our QLabels no longer render text. The labels are still visible in the GUI, but no longer draw their text to the display. Are there any known issues which may be the cause of this?

    jsulmJ 1 Reply Last reply
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    • C corruptedsyntax

      A project I'm working on recently changed from Wayland to EGLFS to integrate camera hardware into our platform. A problem we're running into is that for some reason upon switching to EGLFS all our QLabels no longer render text. The labels are still visible in the GUI, but no longer draw their text to the display. Are there any known issues which may be the cause of this?

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

      @corruptedsyntax If you start your app in a console - do you see any errors or warnings?

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

      C 1 Reply Last reply
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      • jsulmJ jsulm

        @corruptedsyntax If you start your app in a console - do you see any errors or warnings?

        C Offline
        C Offline
        corruptedsyntax
        wrote on last edited by
        #3

        @jsulm
        Our application is launched as part of a system service on startup. I redirected the output and it all looks normal. I think we're resolved the issue though. It appears some qml environment variables were being set before launch when we had recently changed to qwidgets. Upon changing to EGLFS these vestigial variables prevented EGLFS from rendering text correctly for some reason.

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