Vulkan extensions support request!

[AliAkbar2005]

Greetings, I wanted to inquire about 4 specific Vulkan extensions:

1) VK_EXT_swapchain_colorspace

2) VK_EXT_swapchain_maintenance1

3) VK_KHR_present_wait

4) VK_KHR_present_id

When will these be supported on Intel drivers/GPUs/iGPUs, especially the 2nd and 3rd ones. I am using the latest intel driver 32.0.101.6790 and my specs are the following:

CPU: Intel Core i5-11320H 4.50 GHz 3.20 GHz 2.50 GHz
GPU (Integrated): Intel Iris Xe (96 EUs, DirectX 12.1, OpenGL 4.6, OpenCL 3.0, Vulkan 1.4.311, 8 GB Shared VRAM)
RAM: DDR4-3200 16 GB (15.7 GB Usable)
OS: Windows 11 Home 21H2 x64
Storage: 256 GB NVMe SSD

Thanks in advance.

[DhannielM_Intel]

Hi AliAkbar2005, 

Thank you for posting in the community and sharing this information. Based on my investigation, it appears that these extensions are available starting with Vulkan version 1.2. According to the release notes for Intel's drivers, the latest driver integrates Vulkan version 1.3. Therefore, it is likely that the extensions you are inquiring about are included in the latest driver.

Could you let me know if you are encountering any error messages indicating that these extensions are missing from your driver?

Best regards,

Dhanniel M.

Intel Customer Support Technician

[AliAkbar2005]

Hi DhannielM,

Thank you for your swift reply. Unfortunately those extensions are indeed not supported. I checked and confirmed using Vulkan Hardware Capabilities Viewer, vulkaninfo and DXVK (log file). Please find attached 3 files which show that said extensions are not supported. I was unable to locate the 4 extensions mentioned above in both Vulkan Hardware Capabilities Viewer and vulkaninfo, and the DXVK log file states that said extensions are unsupported on the Iris Xe. The only supported extensions that I could find are the following:

1) VK_KHR_swapchain

2) VK_KHR_swapchain_mutable_format

But VK_EXT_swapchain_maintenance1 was nowhere to be found, neither were VK_KHR_present_wait or VK_KHR_present_id. And since all these extensions are related to/part of/require VK_KHR_swapchain, I was wondering why they weren't implemented already!

[DhannielM_Intel]

Hi AliAkbar2005, 

Thank you for providing the log files. I was wondering if you are a game developer or working on developing an application or game. Additionally, could you share the exact model of your laptop for reference?

Best regards,

Dhanniel M.

Intel Customer Support Technician

[AliAkbar2005]

Sure, it is a Dell Inspiron 15 5510. I use generic Intel drivers for gaming, mostly for DXVK/Vulkan games, since Dell's OEM ones are always outdated (their latest intel driver for my laptop is 32.0.101.6556).

[DhannielM_Intel]

Hi AliAkbar2005, 

Thanks for sharing your laptop model to me. It seems my initial question may have been missed. Could you let me know if you are developing games and have noticed that the driver is missing certain extensions?

Best regards,

Dhanniel M.

Intel Customer Support Technician

[AliAkbar2005]

I apologize for the misunderstanding, no I am not a game developer, but as stated above, it does seem that those extensions are indeed not supported/available on Intel's drivers, since they are missing from vulkaninfo and vulkan caps viewer, and even DXVK log files for games state that said extensions are unsupported/unavailable.

[DhannielM_Intel]

Hi AliAkbar2005, 

Thank you for sharing this information with me. After reviewing the files you've provided, including vulkaninfo.txt and Vulkan Caps Viewer, I was able to identify the VK_EXT_swapchain_colorspace. However, its value in the DXVK log file is 0. The other three extensions were not found in the first two files and have the same value in the DXVK log. Allow me to investigate further on my end, and I will update you as soon as possible.

Best regards,

Dhanniel M.

Intel Customer Support Technician