Vulkan Validation Error VUID-VkSwapchainCreateInfoKHR-minImageCount-01271

When enabling the VK_LAYER_KHRONOS_validation layer when compiling the hellovulkantriangle example, the following validation error is printed:

vkDebug: Validation: 0: Validation Error: [ VUID-VkSwapchainCreateInfoKHR-minImageCount-01271 ] Object 0: handle = 0x557dcbbd89d0, type = VK_OBJECT_TYPE_DEVICE; | MessageID = 0xe18476f3 | vkCreateSwapchainKHR() called with minImageCount = 2, which is outside the bounds returned by vkGetPhysicalDeviceSurfaceCapabilitiesKHR() (i.e. minImageCount = 3, maxImageCount = 0). The Vulkan spec states: minImageCount must be greater than or equal to the value returned in the minImageCount member of the VkSurfaceCapabilitiesKHR structure returned by vkGetPhysicalDeviceSurfaceCapabilitiesKHR for the surface (https://github.com/KhronosGroup/Vulkan-Docs/search?q=)VUID-VkSwapchainCreateInfoKHR-minImageCount-01271)

Looking at the creation of the vulkan swapchain in  qvulkanwindow.cpp , I can see that qt uses a qBound to determine a value between minImageCount, maxImageCount.

The problem is that it does not take into account the fact maxImageCount can have a value of 0, which means that there are no actual maximum limit the amount of swapchain images as explained in vulkan documentation .

However, the qt implementation of QVulkanWindow does not allow to manually change the amount of swapchain images.

Since this is the first time reporting a bug to qt, let me know if more information is needed.