Comment 6 for bug 1550765

I've now tested the kernel fix with my hardware and confirmed it works. I compiled Xenial's 4.4.0-14-generic kernel after applying the patch, by following https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel . With the patched kernel, my headset's headphones and microphone work and the background noise isn't present, without needing an /etc/modprobe.d/snd-hda-intel.conf for module option fix and without needing to disable Loopback Mixing.

I had to slightly adjust Takashi Iwai's patch, with regards to line numbers and surrounding context lines, to get it to successfully apply, and I've attached this.