Direct firmware load for i915/kbl_dmc_ver1_01.bin failed with error -2

I saw an error on booting my new Debian 9.1 Stretch desktop and searching for the error message didn't pull anything useful at first. Here's the error message:

aclark@discus 0 ~ $ sudo dmesg | grep i915
[    2.705848] i915 0000:00:02.0: firmware: failed to load i915/kbl_dmc_ver1_01.bin (-2)
[    2.705851] i915 0000:00:02.0: Direct firmware load for i915/kbl_dmc_ver1_01.bin failed with error -2
[    2.705852] i915 0000:00:02.0: Failed to load DMC firmware [https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling runtime power management.
[    3.030402] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[    3.030406] [drm] Initialized i915 1.6.0 20160919 for 0000:00:02.0 on minor 0
[    3.165047] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
aclark@discus 0 ~ $ 

Then found this Debian package which looked useful: https://packages.debian.org/sid/firmware-misc-nonfree

Installed that and the machine boots without errors.