Operating system: Linux-5.3.0-26-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: AMD Radeon VII (VEGA20, DRM 3.33.0, 5.3.0-26-generic, LLVM 9.0.0) X.Org 4.5 (Core Profile) Mesa 19.2.1 <<<<< INCORRECT (amdgpu-pro is installed, and i know blender is using it because it wouldn't even detect the OpenCL device untill amdgpu-pro was installed)
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-27 18:52, hash: rB507a331f0182
OpenCL performance on Radeon VII now seems to be even worse. Takes 3 hours to render a frame that takes 20 minutes on a ryzen 5 3600. GPU fans are all spinning at top speed so I know the GPU is being used.
As additional information, I was only able to install the AMD drivers with this guide/script
because I have updated my Ubuntu. I'm not sure if ROCM or dkms is working properly.