I think I found the culprit. When installing from ISO it installs HWE
kernel.
LXD 5.21 LTS uses the Virtio GPU by default but the ubuntu:22.04 image
uses 5.15 generic kernel which does not have virtio_gpu driver
ubuntu@desktop-jammy-vm:~$ lshw -C display
WARNING: you should run this program as super-user.
*-display
description: VGA compatible controller
product: Virtio GPU
vendor: Red Hat, Inc.
physical id: 0
bus info: pci@0000:04:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=virtio-pci latency=0
resources: iomemory:80-7f irq:21 memory:80000000-807fffff
memory:800300000-800303fff memory:80800000-80800fff memory:c0000-dffff
*-graphics
product: EFI VGA
physical id: 1
logical name: /dev/fb0
capabilities: fb
configuration: depth=32 resolution=1280,800
WARNING: output may be incomplete or inaccurate, you should run this program as
super-user.
The way out of this situation is to install HWE kernel
$ apt install -y linux-virtual-hwe-22.04
and reboot
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https://bugs.launchpad.net/bugs/2098014
Title:
spice-vdagent seems not to be working in jammy when connecting from
noble
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