I have installed a fresh copy of Ubuntu 18.04 on my PC with an AMD HD7900 Graphics Card. I believe the code name is 'Tahiti'
First thing I did was install the Oibaf PPA
Then I did a
sudo apt-get update && sudo apt-get upgrade && sudo apt install mesa-vulkan-drivers
When I type
vulkaninfo, I get the following message.
VULKAN INFO =========== Vulkan Instance Version: 1.1.70 /build/vulkan-Kbdbga/vulkan-1.1.70+dfsg1/demos/vulkaninfo.c:2700: failed with VK_ERROR_INITIALIZATION_FAILED
I find the Vulkan guidance very confusing so would appreciate any help. I'm hoping to play the new Tomb Raider game.