https://bugzilla.kernel.org/show_bug.cgi?id=204725
--- Comment #56 from Dmitri Seletski (drjoms@gmail.com) --- earliest kernel I could find(i am kinda new to git bisections) be8454afc50f43016ca8b git rev-parse --verify HEAD be8454afc50f43016ca8b6130d9673bdd0bd56ec
I did not find bisection myself, i just looked out on first patch/release of AMDGPU with support of Navi.
and issue was already there. So problem was there since start basically.