This is a quick fix for the missing firmware file of the Skylake DMC in the Linux Kernel. This is tested in Kali Linux 2018.2 but should also work in other Debian based distributions with the same Kernel version.
The error message
At boot time the error message says:
i915 0000:00:02.0: firmware: failes to load i915/skl_dmc_ver1_27.bin (-2)
It seems the file is simply missing.
You can get the file from William A. Kennington III’s Github repo here: https://github.com/wkennington/linux-firmware/tree/master/i915. Simply download the (raw) file skl_dmc_ver1_27.bin and move it to your /lib/firmware/i915 folder. This command will do it for you:
curl -o /lib/firmware/i915/skl_dmc_ver1_27.bin https://raw.githubusercontent.com/wkennington/linux-firmware/master/i915/skl_dmc_ver1_27.bin
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