Rebuild of the rpi-fb-matrix app fails to work

1

On my Pi 4 with 4 64x64 panels things work fine - using the rpi-fb-matrix app to copy video going vi hdmi to the panels. I’m using the adafruit bonnet.

I’ve rebuilt the system to run on my pi zero using 4 32x32 panels. All the api examples work fine (including video-viewer) but the rpi-fb-matrix app does not copy hdmi output to the panels.

I note that on the pi zero it is 895kb while on the pi 4 it is 867kb. The source is identical so why is the app bigger?

2

Ignore this post - it turns out that if I add:
–led-gpio-mapping=adafruit-hat
to the invocation of the rpi-fb-matrix all works fine (though I don’t have to do this on the Pi 4)