I just booted to:
uname -a Linux rybu-ThinkPad-W530 4.4.16-040416-generic #201607271333 SMP Wed Jul 27 17:35:45 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
So I think this means the problem is not in 4.4.16.
So I will add the kernel-fixed-upstream tag, and confirmed.
I just booted to:
uname -a 040416- generic #201607271333 SMP Wed Jul 27 17:35:45 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Linux rybu-ThinkPad-W530 4.4.16-
So I think this means the problem is not in 4.4.16.
So I will add the kernel- fixed-upstream tag, and confirmed.