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  1. Qt
  2. QTBUG-128864

Vulkan RHI Renderer freezes on Windows sometimes after pressing Win-D

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 5.15, 6.6.3, 6.7.2
    • Qt RHI
    • None
    • Windows

    Description

      It seems that the Vulkan RHI Renderer can't recover when the application is minimized and restored again (when the threaded renderer loop is used)

      Here is a simple test.qml file that plays an animation.
      Reproduction:

      • set QSG_RENDER_LOOP=threaded
      • set QSG_INFO=1 (to check which renderer is used)
      • set QSG_RHI_BACKEND=vulkan
      • set QT_QPA_UPDATE_IDLE_TIME=0 (this seems to trigger the freeze more consistently but it also happens without this setting)
      • qml.exe test.qml
      • press repeatedly WIN+D to minimize and restore the application again
      • The application will freeze

       

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        1. test.qml
          0.2 kB
          Anton Scheungrab
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            lagocs Laszlo Agocs
            scheungrab@cipsoft.com Anton Scheungrab
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            Dates

              Created:
              Updated:

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