Public bug reported:

Ubuntu version: 18.04.2 LTS

Mesa version: 19.0.2
Mesa-vulkan-driver version: 19.0.2, POLARIS10, DRM 3.27.0, 5.0.0-20-generic, 
LLVM 8.0.0)
Video card: AMD RX 580 8GB, 

There is an issue when the Vulkan mesa RADV drivers are compiled with
LLVM 8, due to an LLVM 8 bug, resulting in no visual output in some
programs using the RADV Vulkan backend

Upgrading to a mesa build compiled with LLVM 9, or reverting back to the
bionic version from bionic-updates (which uses LLVM 6) fixes the
problem.

Using the AMDVLK vulkan driver workarounds the problem too.

The program I have personally tested is RPCS3


I could put additional info about the LLVM bug but at this moment I do
not have the upstream reference

** Affects: mesa (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1835315

Title:
  Vulkan funcionality broken when mesa is compiled with LLVM 8 in some
  programs

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