For me;

Oct 25 15:34:51 phat kernel: fbcon: amdgpudrmfb (fb0) is primary device
Oct 25 15:34:51 phat kernel: amdgpu: [powerplay]
                              failed to send message 148 ret is 0
Oct 25 15:34:51 phat kernel: amdgpu: [powerplay]
                              last message was failed ret is 0