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  1. Qt
  2. QTBUG-65882

UI is not rendered when multiple displays are attached

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 5.9.3, 5.9.4
    • GUI: Window management
    • None
    • Windows 10 Pro x64 on Surface Book Pro with 2x FullHD Display attached via DisplayLink Docking Station.

    Description

      The QGuiApplication window stays completely white.

      I was digging for hours to find a solution and stumbled upon https://bugreports.qt.io/browse/QTCREATORBUG-17091. This led me to unplug my two external displays (2x FullHD via Dell D3100 docking station with DisplayLink). Running the code again, everything works. 

      With the displays attached, I can move the application to the Surface Book screen and the moment it hits that frame, the content appears.

      Attachments

        1. MultiDisplayBug_cycling-colors.zip
          784 kB
        2. MultiDisplayBug.zip
          2 kB
        3. qtdiag.txt
          7 kB
        4. white.png
          white.png
          11 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-50371 Windows: OpenGL crash on start on Intel + AMD GPU (Multi-adapter) systems

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-65882
          # Subject Branch Project Status CR V
          255630,3 qtdiag/Windows: Output all graphics adapters 5.12 qt/qttools Status: MERGED +2 0
          255631,3 Windows QPA: Output all adapters in diagnostics used by qtdiag 5.12 qt/qtbase Status: MERGED +2 0

          Activity

            People

              Unassigned Unassigned
              tgurdan Tobias Gurdan
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              3 Vote for this issue
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              Dates

                Created:
                Updated:

                Gerrit Reviews

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