No HDMI output on Nezha board

I followed the instructions in
http://iso.qa.ubuntu.com/qatracker/milestones/437/builds/255006/testcases/1755/results

The board does not provide HDMI output.

Monitor: Samsung LU28R550UQRXEN (see appended EDID information)
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ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.17.0-1003-allwinner.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: riscv64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
CasperMD5CheckResult: unknown
DistroRelease: Ubuntu 22.04
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:

Lspci-vt: -[0000:00]-
Package: linux (not installed)
PciMultimedia:

ProcCpuinfo:
 processor : 0
 hart : 0
 isa : rv64imafdc
 mmu : sv39
 uarch : thead,c906
ProcCpuinfoMinimal:
 processor : 0
 hart : 0
 isa : rv64imafdc
 mmu : sv39
 uarch : thead,c906
ProcEnviron:
 TERM=vt220
 PATH=(custom, no user)
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.17.0-1003-allwinner root=LABEL=cloudimg-rootfs ro quiet splash
ProcVersionSignature: Ubuntu 5.17.0-1003.3-allwinner 5.17.15
RelatedPackageVersions:
 linux-restricted-modules-5.17.0-1003-allwinner N/A
 linux-backports-modules-5.17.0-1003-allwinner N/A
 linux-firmware 20220329.git681281e4-0ubuntu3.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
StagingDrivers: sunxi_cedrus
Tags: jammy uec-images staging
Uname: Linux 5.17.0-1003-allwinner riscv64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
acpidump: