Comment 7 for bug 1655100

As I suspected, issue is still present with the 4.10 kernels. Tried it on a separate clean install using 16.10 upgrading the kernel to v4.10-rc3 mainline

This warning is present for 4.10 as well as for older kernels on the Alienware 15 R2
update-initramfs: Generating /boot/initrd.img-4.10.0-041000rc3-generic
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver8_7.bin for module i915
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.10.0-041000rc3-generic /boot/vmlinuz-4.10.0-041000rc3-generic

uname -a
Linux starbase 4.10.0-041000rc3-generic #201701081831 SMP Sun Jan 8 23:33:02 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.10
Release: 16.10
Codename: yakkety