Raspberry Pi 4 Tutorial - fatal error

I'm also getting this same issue of no USB mouse / keyboard (all types) with my 2Gb version - straight from fresh SD card image - linuxcnc-2.8.0-pi4.img

"Do you have the same problem with a standard Raspbian install, or is it just the LinuxCNC image?"

Raspbian works fine with keyboard and mouse. So it seems that it is "just the LinuxCNC image"

I will try a 4GB hence it seems to be working straight away.

Bought the 4gb version, and it booted right up

Can those with this problem please state exactly which model of Pi they are using?

One possible problem is that the 8GB Pi needs a 64bit kernel if it is going to address more than 4GB.

I have both a Rpi 4 B 2G & Rpi 4 8G and have this problem. So far I have tried using the 2.80 & 2.81 Images and get the same results no matter which Pi or version I use.

ACKNAC wrote: I have both a Rpi 4 B 2G & Rpi 4 8G and have this problem

Can you state exactly what problem you have (this is a long thread), and how it becomes evident?

I have a Pi42GB that I bought specifically for testing the SD card image, and it works for me.

I have the same problem with both versions, so 2.8 and 2.81.
I tried it on Raspberry pi 400 and RPi 4B+ 4Gb.
Either the system freezes immediately after the restart following the notification: resize file system.
This is preceded by a message: Error: cpu 0 not supported
Or the system freezes as soon as the desktop is displayed.