Need help for Vulkan driver for Radeon RX 560 GPU

Hello,

I want to start playing with Vulkan API and I don't know how to install the drivers.

I installed libvulkan1 mesa-vulkan-drivers vulkan-ut, but the provided demo is not working, I have this error :

-------------------------------------------
:~$ vulkan-smoketest
terminate called after throwing an instance of 'std::runtime_error'
what(): VkResult -3 returned
Abandon
-------------------------------------------

The output for the command vulkaninfo is :
--------------------------------------------
===========
VULKAN INFO
===========

Vulkan API Version: 1.0.61

INFO: [loader] Code 0 : Found ICD manifest file /usr/share//vulkan/icd.d/intel_icd.x86_64.json, version "1.0.0"
INFO: [loader] Code 0 : Found ICD manifest file /usr/share//vulkan/icd.d/radeon_icd.x86_64.json, version "1.0.0"

Instance Extensions:
====================
Instance Extensions count = 10
VK_KHR_external_fence_capabilities : extension revision 1
VK_KHR_external_memory_capabilities : extension revision 1
VK_KHR_external_semaphore_capabilities: extension revision 1
VK_KHR_get_physical_device_properties2: extension revision 1
VK_KHR_get_surface_capabilities2 : extension revision 1
VK_KHR_surface : extension revision 25
VK_KHR_wayland_surface : extension revision 6
VK_KHR_xcb_surface : extension revision 6
VK_KHR_xlib_surface : extension revision 6
VK_EXT_debug_report : extension revision 8
/build/vulkan-YO5iw0/vulkan-1.0.61.1+dfsg1/demos/vulkaninfo.c:1722: failed with VK_ERROR_INITIALIZATION_FAILED
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It seems there is an error :/.

Any one familiar with vulkan?

Thanks.