Comment 20 for bug 1662589

Does the bug go away if you boot back into kernel version 4.4.0-31?

Can you confirm the bug happens with 4.4.0-32:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/10489149

We can bisect between these two versions if -31 is good and -32 is bad.