I am on Ubuntu 20.04 LTS.
When installing the amdgpu-pro driver version 20.30 opencl works fine, everything works as expected. I can run clinfo without issues and without hangups. With driver 20.45 clinfo hangs, in fact any opencl app hangs. I posted this on github where my ticket was closed with the comment that navi gpus are not supported with opencl.
Since it was working with 20.30 and ist not working with 20.45 this statement seems bogus.
Does anyone know what is up with that? For now I am reverting to 20.30.