====== Ubuntu - GPU - AMDVLK - Select the AMDVLK Vulkan Driver ======

<WRAP info>

**NOTE:**  The actual driver files, can be located in various directories.

Although **/usr/share/vulkan/icd.d/** and **/etc/vulkan/icd.d/** are the most commonly used paths, the Vulkan loader looks in all the following locations:

<code>
/etc/vulkan/icd.d
/usr/local/etc/vulkan/icd.d
/usr/local/share/vulkan/icd.d
/usr/share/vulkan/icd.d
$HOME/.local/share/vulkan/icd.d
</code>

</WRAP>


----

===== Select the AMDVLK Vulkan Driver =====

<code bash>
export AMD_VULKAN_ICD=AMDVLK
</code>

<WRAP info>
**NOTE:**  AMDVLK is the default, but may cause issues with Steam and other applications.

  * RADV is often much better, faster and more up to date!

</WRAP>

----

===== Select the Mesa RADV Vulkan Driver =====

<code bash>
export AMD_VULKAN_ICD=RADV
</code>

----

===== Reenable the ICD based loading approach =====

Alternatively to the above.

<code bash>
export DISABLE_LAYER_AMD_SWITCHABLE_GRAPHICS_1=1
</code>

<WRAP info>
**NOTE:**  When **DISABLE_LAYER_AMD_SWITCHABLE_GRAPHICS_1=1**, you can choose your preferred Vulkan driver by setting the environment variable **VK_ICD_FILENAMES**.

  * For example, running Steam with the RADV driver is done by:

<code bash>
VK_ICD_FILENAMES=/usr/share/vulkan/icd.d/radeon_icd.i686.json:/usr/share/vulkan/icd.d/radeon_icd.x86_64.json steam
</code>

  * To avoid crashes with 32-bit games, it is possible to assign the 32-bit variant and the 64-bit variant to the environment variable. 

</WRAP>

----

===== References =====

https://wiki.archlinux.org/title/Vulkan#Selecting_vulkan_driver