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  1. Qt
  2. QTBUG-132808

Vulkan validation error on vkAcquireNextImageKHR (using validation layer bundled with 1.4.304)

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    • Windows
    • 24d62ffd7 (dev), b96994c9e (6.9), d96c2018f (6.8)

    Description

      I have a QML sample that redraws the QML UI every frame.

      When running it with the Vulkan backend with validation layers enabled, the console is spammed with the following validation error:

      vkDebug: Validation Error: [ VUID-vkAcquireNextImageKHR-semaphore-01779 ] Object 0: handle = 0xd5b26f0000000010, type = VK_OBJECT_TYPE_SEMAPHORE; | MessageID = 0x5717e75b | vkAcquireNextImageKHR(): Semaphore must not have any pending operations.
The Vulkan spec states: If semaphore is not VK_NULL_HANDLE, it must not have any uncompleted signal or wait operations pending (https://vulkan.lunarg.com/doc/view/1.4.304.0/windows/1.4-extensions/vkspec.html#VUID-vkAcquireNextImageKHR-semaphore-01779)

      I have included the mentioned sample in this issue.

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-135126 windows: Hello Vulkan Triangle throws validation error with Vulkan 1.4 SDK

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              lagocs Laszlo Agocs
              maximeduriez Maxime Duriez
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