[cogman10]

It's the GuC and HuC firmware.

https://wiki.gentoo.org/wiki/Intel#GuC.2FHuC_firmware

[exe34]

Thanks! Aha this is for gen 9ish onwards, my GPU is gen 3.

[lproven]

Exactly -- not sure I have many machines new enough for this to apply to.

The machine I'm typing on is the 2nd newest in the fleet -- it's a work box -- and it's an i7-8550U, an 8th gen "Kaby Lake" chip.