radv added support for it just recently, but it requires "gang submission" support in amdgpu (it's about handling parallel submissions) that's still not merged

radv added support for it just recently, but it requires "gang submission" support in amdgpu (it's about handling parallel submissions) that's still not merged into the upstream Linux kernel, so mesh shaders are disabled by default. https://timur.hu/blog/2022/mesh-shaders-arrive-on-linux https://timur.hu/blog/2022/mesh-shaders-arrive-on-linux