Also hit this issue on a Dell XPS 13 9360 (i7-8550U) running 17.10 and
initramfs-tools 0.125ubuntu12. Until a fix is available, I was able to
workaround the issue by adding my own initramfs-tools hook.
I created a hook script to copy the firmware:
$ cat /etc/initramfs-tools/hooks/i915_add_kbl_guc_ver9_14
#!/bin/sh
PREREQ=""
prereqs()
{
echo "$PREREQ"
}
case $1 in
prereqs)
prereqs
exit 0
;;
esac
. /usr/share/initramfs-tools/hook-functions
# Begin real processing below this line
copy_file firmware /lib/firmware/i915/kbl_guc_ver9_14.bin
/lib/firmware/i915/kbl_guc_ver9_14.bin
exit 0
Marked the script as executable, and updated all initramfs images:
$ sudo chmod u+x /etc/initramfs-tools/hooks/i915_add_kbl_guc_ver9_14
$ sudo update-initramfs -k all -u
$ sudo update-grub
After reboot, success:
$ sudo cat /sys/kernel/debug/dri/0/i915_guc_load_status
GuC firmware status:
path: i915/kbl_guc_ver9_14.bin
fetch: SUCCESS
load: SUCCESS
version wanted: 9.14
version found: 9.14
header: offset is 0; size = 128
uCode: offset is 128; size = 142272
RSA: offset is 142400; size = 256
GuC status 0x800330ed:
Bootrom status = 0x76
uKernel status = 0x30
MIA Core status = 0x3
Scratch registers:
0: 0xf0000000
1: 0x0
2: 0x0
3: 0x5f5e100
4: 0x600
5: 0xd5fd3
6: 0x0
7: 0x8
8: 0x3
9: 0x74240
10: 0x0
11: 0x0
12: 0x0
13: 0x0
14: 0x0
15: 0x0
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https://bugs.launchpad.net/bugs/1728238
Title:
update-initramfs not adding i915 GuC firmware, firmware fails to load
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