Hyperpixel 4.0 Touch AND HDMI0 is blank on Raspberry Pi 4 with Kali Linux and the hyperpixel4 drivers. Why? How to make this usable?

Hyperpixel 4.0 Touch AND HDMI0 is blank on Raspberry Pi 4 with Kali Linux and the hyperpixel4 drivers. Why? How to make this usable?

Kali ARM 64-bit Raspberry Pi 4 version used is from here:

https://images.offensive-security.com/arm-images/kali-linux-2020.1a-rpi3-nexmon-64.img.xz

hyperpixel4 drivers and instructions used are here:

Removing HDMI0 and rebooting after install produces a backlit Hyperpixel 4.0 with no text or any image at all.

Inserting the HDMI0 with the Hyperpixel 4.0 installed produces a four color pattern with no text on the Pi 4 and a backlit but blank Hyperpixel 4.0

So, how do I debug this?

How do I get this to function with the Hyperpixel 4.0 display?

The Pimoroni Hyperpixel driver is written for Buster, the 32 bit version of Buster.
How did you install it on Kali?