i915 module verification failed
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After installing i915 on guest VM Ubuntu 22.04. Received a message.
root@user-Standard-PC-Q35-ICH9-2009:~/i915-sriov-dkms# dmesg | grep i915
[ 2.948494] i915: loading out-of-tree module taints kernel.
[ 2.948522] i915: module verification failed: signature and/or required key missing - tainting kernel
[ 3.128038] i915 0000:01:00.0: Running in SR-IOV VF mode
[ 3.128142] i915 0000:01:00.0: [drm] ERROR GuC submission disabled
[ 3.188568] i915 0000:01:00.0: Device initialization failed (-19)
[ 3.189999] i915 0000:01:00.0: Please file a bug on drm/i915; see https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs for details.
Settings for /etc/default/grub
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_guc=3"
GRUB_CMDLINE_LINUX=""
kernel - 6.5.0-45-generic
Are you using SecureBoot? What is the output of mokutil --sb-state. If SecureBoot is enabled you need to import the dkms machine owner key (MOK) via mokutil --import ${path_to_mok}, choose some password, reboot, accept to import the key, enter the same password again and then it might work. Not sure where Ubuntu stores the dkms mok key and if SecureBoot is really the problem here. You could temporarily disable SecureBoot in the BIOS for testing.