I have a new Raspberry Pi 4 and Sense HAT. I've installed Raspian Buster installed via SD-card and managed to boot headless with ethernet cable connected. Power is from a USB-C cable plugged into a wall outlet. So far so good.
However, as soon as I attach the Sense HAT, the machine freezes:
- LEDs display permanent rainbow
- green disk activity light stops
- pi won't connect to the network
There doesn't seem to be anything in the logs, the machine just freezes.
What could this possibly be due to?