I thought it would be nice to share my findings about P2.5 128x64-32S-JHT1 panel with FM6124EJ IC in configuration with Adafruit Triple LED Matrix Bonnet and Raspberry Pi Zero 2W running dietpi.
As I’m a total newbie I wasted a lot of time because I was convinced adafruit-hat or adafruit-hat-pwm is the only proper led-hardware-mapping setting, while in reality this panel works properly with default regular mapping.
For me, with Zero 2W it runs fine with minimal settings of --led-rows=64 --led-cols=128 (so far it didn’t need --led-slowdown-gpio or any other tweaking in my tests)
I’ve sourced my panel from this listing: https://aliexpress.com/item/32835581013.html
BTW. If you are using MobaXterm SSH client like I did - to save your sanity disable remote monitoring feature (bottom bar that shows device stats like cpu/ram/disk usage) as it may affect gpio pins output and cause split-second panel dimming by creating spikes when refreshing those stats every second…