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  1. Qt
  2. QTBUG-45277

Black QWebEngineView widget on Windows 7 x64

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Details

    • Bug
    • Resolution: Cannot Reproduce
    • P1: Critical
    • 5.5.0 Beta
    • 5.4.1
    • WebEngine
    • None
    • Windows 7 x64, Radeon GPU

    Description

      When executing an application with QWebEngineView, the widget always appears black (e.g "Fancy Browser' or "Tab Browser" ). No webpage is visible.

      Apps compiled with Qt 5.4.1 and msvc1013 on Windows 8.1. Visual C++ Redistributable Packages for Visual Studio 2013 were installed on target machines.

      Couple of observations:

      • The effect is the same as on a Virtualbox virtual machine (Windows 7 x64).
      • Applications run fine on Windows 8.1
      • When run on a different Windows 7 x64 system (Nvidia graphics), the apps work, but page loading is very slow (fast page load = 1s, slow = 30s - 60s) or they widget freezes (the rest of the app works).

      The issue was mentioned in the following bug reports:
      https://bugreports.qt.io/browse/QTBUG-43110
      https://bugreports.qt.io/browse/QTBUG-42083
      https://bugreports.qt.io/browse/QTBUG-44122
      https://bugreports.qt.io/browse/QTBUG-45122
      https://bugreports.qt.io/browse/QTBUG-43351

      Why does it work or almost work on different machines with the same operating system? Does it have sth to do with GPUs and graphic drivers?

      Attachments

        1. black_widget_computer.png
          47 kB
          Tomasz Misztur
        2. fancy_qt55_comp1.png
          67 kB
          Tomasz Misztur
        3. fancy_qt55_vbox.png
          18 kB
          Tomasz Misztur
        4. qt_quick2_example.png
          89 kB
          Tomasz Misztur
        5. vbox_stopped.png
          16 kB
          Tomasz Misztur
        6. vbox_stopped2.png
          39 kB
          Tomasz Misztur
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            mibrunin Michael Bruning
            misku Tomasz Misztur
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            Dates

              Created:
              Updated:
              Resolved:

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