https://bugs.freedesktop.org/show_bug.cgi?id=101387
--- Comment #17 from Alex Deucher alexdeucher@gmail.com --- (In reply to Carlo Caione from comment #16)
I see. The problem is that the garbage lines result in a very bad experience for the user. Do you have any idea how to fix / mitigate that?
If it's related to reprogramming the MC, this patch series may help: https://lists.freedesktop.org/archives/amd-gfx/2017-February/005675.html It hasn't landed yet due to regressions with VCE.