Can you also give the 4.8-rc1 kernel a try? If it still exhibits the bug, we can perform a kernel bisect. 4.8-rc1 can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc1/
Can you also give the 4.8-rc1 kernel a try? If it still exhibits the bug, we can perform a kernel bisect. 4.8-rc1 can be downloaded from:
http:// kernel. ubuntu. com/~kernel- ppa/mainline/ v4.8-rc1/