I tested the latest mainline 4.4 kernel (4.4.56) as requested. It exhibits the same behavior. I also tried the 4.8.17 mainline kernel with the same results. I still have to fall back to kernel 4.8.0-30.
I tested the latest mainline 4.4 kernel (4.4.56) as requested. It exhibits the same behavior. I also tried the 4.8.17 mainline kernel with the same results. I still have to fall back to kernel 4.8.0-30.