You're welcome! We were trying to unravel that post about PCID as well.

It appears the first PCID code was merged in 4.14.12 so you will probably have that in the coming days / weeks. CoreOS is also 4.14.11.

For those on LTS releases, we may have to venture into uncharted waters. The first that came to mind was elrepo.org, as they apply some of the same build options that Redhat uses against the latest upstream. Their kernel packages are meant to provide support for newer laptop hardware...