Luca, Ubuntu 18.04 now has mesa 20.0.8-0ubuntu1~18.04.1, is the issue still reproducible?
** Changed in: mesa (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1835315 Title: Vulkan funcionality broken when mesa is compiled with LLVM 8 in some programs Status in mesa package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1835315/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp