I’ve been having the same issue. I’ve pretty much tried all options. I’m sure its going to be something with the LED panel I have (ABC) addressing 20x40 p8 panel. Do you have 4 (ABCD) or 5 (ABCDE) address pins on the Hub75 connector on the back?
It would be worth trying the --led-row-addr-type argument.
I should have included a photo of the back! I will upload one soon. When I looked last time, I could not see any writing on the Hub75 connector port. I am thinking that this is just an incompatible chiptype. Will take some zoomed photos and upload.
Hello, I just bought 12 pieces of 32x32 matrices.
They look almost the same as the one I already had - working fine with RGB Matrix Bonnet.
The difference are some of the chips at the back are different.
New 32x32 matrices do not work.
Supplier told me that the chips used are chipone 2038s.
They do not seem to work.