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  1. Qt
  2. QTBUG-73470

Wrong VkQueue provided to vkQueuePresentKHR in QVulkanWindowPrivate::endFrame()

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    Details

    • Platform/s:
      All
    • Commits:
      f0057f0269 (qt/qtbase/dev) f0057f0269 (qt/tqtc-qtbase/dev) e0d0905cff (qt/qtbase/6.3) e0d0905cff (qt/tqtc-qtbase/6.3) ac782945fc (qt/qtbase/6.2) ac782945fc (qt/tqtc-qtbase/6.2) 8f69c4ba5c (qt/tqtc-qtbase/5.15)

      Description

      According to spec:

      https://www.khronos.org/registry/vulkan/specs/1.1-extensions/pdf/vkspec.pdf

      VkResult vkQueuePresentKHR(   VkQueue queue,   const VkPresentInfoKHR* pPresentInfo);

      • queue is a queue that is capable of presentation to the target surface’s platform on the same device as the image’s swapchain.

       

      problem in your code is in line:

      err = vkQueuePresentKHR(gfxQueue, &presInfo);

      should be:

      err = vkQueuePresentKHR(presQueue, &presInfo);
      

      Probability that gfxQueue will not has capable to present something is very low but not equal zero. 

       

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            Assignee:
            lagocs Laszlo Agocs
            Reporter:
            karolpg Karol Grydziuszko
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