AMD Vulkan issues

[Seleucids]

I bought a new AMD GPU and I try to play 0ad on it. However, I run into errors when using the Vulkan renderer:

 ~/b/A27-1 $ binaries/system/pyrogenesis                                                                            I 
TIMER| InitVfs: 192.018 us
FILES| Main log written to '/home/rena/.config/0ad/logs/mainlog.html'
FILES| Interesting log written to '/home/rena/.config/0ad/logs/interestinglog.html'
TIMER| CONFIG_Init: 2.94495 ms
Sound: AlcInit success, using OpenAL Soft
WARNING: Failed to create a Vulkan window: Installed Vulkan doesn't implement the VK_KHR_surface extension
ERROR: Unable to create device for Vulkan backend, switching to GL.

I am of course using the A27.1 RC version which I built from source, on this environment. I suspect that I made a mistake while trying to install Vulkan on the system: trying to query vulkaninfo gave these:

 ~ $ vulkaninfo --summary                                                                                           I 
ERROR: [Loader Message] Code 0 : vkCreateInstance: Found no drivers!
Cannot create Vulkan instance.
This problem is often caused by a faulty installation of the Vulkan driver or attempting to use a GPU that does not support Vulkan.
ERROR at /usr/src/debug/vulkan-tools/Vulkan-Tools/vulkaninfo/./vulkaninfo.h:573:vkCreateInstance failed with ERROR_INCOMPATIBLE_DRIVER

The basic GPU driver, vulkan-radeon and amdgpu are installed and activated. Radeontop does work correctly. Below are my grub kernel parameters in /etc/default/grub:

loglevel=3 intel_iommu=on quiet radeon

My question is: how can I set up vulkan driver for AMD GPUs on Arch so that I can run 0ad smoothly? What kernel parameters and config did the developers use?

userreport_hwdetect.txt

system_info.txt

[phosit]

Did you instal vulkan-icd-loader and vulkan-radeon?

[Seleucids]

45 minutes ago, phosit said:

Did you instal vulkan-icd-loader and vulkan-radeon?

Yes. here is the list of Vulkan-related software that I have installed:

 ~/b/A27-1  sudo pacman -Q | grep "vulkan"                                                                                                                                                                                               I 
lib32-vulkan-icd-loader 1.4.313.0-1
lib32-vulkan-mesa-layers 1:25.1.4-2
lib32-vulkan-radeon 1:25.1.4-2
lib32-vulkan-swrast 1:25.1.4-2
lib32-vulkan-validation-layers 1.4.313.0-1
vulkan-headers 1:1.4.313.0-1
vulkan-icd-loader 1.4.313.0-1.1
vulkan-mesa-layers 1:25.1.4-2
vulkan-radeon 1:25.1.4-2
vulkan-swrast 1:25.1.4-2
vulkan-tools 1.4.313.0-1.1