https://bugzilla.kernel.org/show_bug.cgi?id=204725
--- Comment #33 from Dmitri Seletski (drjoms@gmail.com) --- compile latest DRM. from the looks of it gentoo when i put unstable branch and download latest greatest - downloads source from git, which is super neat.
Fetching https://gitlab.freedesktop.org/mesa/drm.git ...
compiled/installed.
next step llvm.
Again, friendly remainder, problem with black screen happens when amdgpu loads. Not when Xorg loads.