Possible missing firmware attempting upgrade

Solution 1:

Thanks @clover. This fixes it:

get the kernel firmware:

cd ~/
git clone https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

go to the firmware directory:

cd /lib/firmware

backup the existing firmware:

sudo mv i915 i915.orig

then (still in /lib/firmware)copy the new firmmware to the same directory:

sudo cp -r ~/linux-firmware/i915/ .

then:

sudo update-initramfs -u -k all