When I upgrading my Ubuntu Kernel,I saw this errors:
W: Possible missing firmware /lib/firmware/i915/kblXXXXXXXX
It seems there are some firmware files missing,so I decide to fix them.
Someone wrote a script about this problem, but unfortunately it doesn't work for me.But i found great illumination in his work, and finally got it fixed.
Form the errors we know missing files are:
Kaby lake DMC
Kaby lake GUC
Broxton GUC
Broxton HUC
SkyLake HUC
So go to intel offical website grab them down and Install.
SkyLake HUC
https://01.org/zh/node/5098
Broxton HUC
https://01.org/zh/node/5094
Broxton GUC
https://01.org/zh/node/5090
Kaby Lake GUC
https://01.org/zh/node/5093
Kaby lake DMC
https://01.org/zh/node/4211
See more
https://01.org/zh/linuxgraphics/downloads?langredirect=1
Extract the package and install by
sudo ./install.sh
Done!