USB keyboard is not working in Ubuntu Xenial installer for Gigabyte MP30-AR0 (APM X-Gene 1)

[Ronald Maas]

When I start the Ubuntu Xenial Installer, the USB keyboard is not working. The installer was started from UEFI Shell using the command:

FS1:\EFI\BOOT\BOOTAA64.EFI

I had to restart the installer using the kernel option 'console=ttyS0,115200' and then use a serial connection.

Expected to happen
-----------------
Able to use USB keyboard to navigate through installer menus

What actually happened
----------------------
Computer was not responding to any of the keys entered on the USB keyboard

Hardware
--------
Gigabyte MP30-AR0 motherboard with APM X-Gene 1 processor flashed with TianoCore UEFI
Kingston KVR16LE11S8/4HB 16 GB ECC DDR3 DRAM
HGST Deskstar NAS 6 TB drive
Logitech USB keyboard

Software
----
Ubuntu Xenial Mini ISO downloaded from http://ports.ubuntu.com/ubuntu-ports/dists/xenial/main/installer-arm64/current/images/netboot/mini.iso (dated 29-Mar-2016)
UBoot has been replaced by TianoCore UEFI using the steps described in: https://rwmj.wordpress.com/2016/03/08/gigabyte-mp30-ar0-flashing-uefi/

Notes
-----
USB keyboard was properly working in UEFI before starting the Ubuntu installer
Both Centos 7.2 and Debian Testing were successfully installed on the system and running stable

[Ronald Maas (ronaldjmaas)]

I tested with latest Xenial arm64 Mini ISO from http://ports.ubuntu.com/ubuntu-ports/dists/xenial/main/installer-arm64/current/images/netboot/mini.iso (dated 20-Apr-2016) and USB keyboard was not working.

Is there a more recent arm64 ISO available which I can test?