Hello, It turns out its not kernel, bisecting mesa/LLVM now to see where this issue is happening from. Thanks, Shawn On Monday, October 10, 2016 3:43:57 PM EDT Shawn Starr wrote: Hello AMD Folks, Bad stalls in Heaven/Valley when transitioning to a new scene, Valley scene rendering 9fps normally 30fps (flying around mountain scene). Going to downgrade kernel to 4.8 stock w/o drm-next-4.9-wip to see if its kernel regression, GPU is revving up/down maybe something messed up with CLKS? Thanks, Shawn