Mission Planner on Raspberry Pi 4, no Luck

I tried pretty much all combinations by now.

But at the moment i am back to raspberry pi4 with the standard debian buster (raspberry OS 10) which runs on 32 bit by standard.
I installed mono 6.8.0, following the instructions from mono-project.com for raspbian 10 with “sudo apt install mono-complete”.
I then copied the ShiaSharp file inside the “ARM” directory over to the main MissionPlanner Directory. However i also tried using the file for ARM64. Both didn’t work.

In the past i also have tried using mono 6.0.0 and 6.4.0. Since i do know, that the latest mono version has some hickups between raspi (read: the amrv7L) and WindowsForms programs. I also tried upgrading the raspian OS to 64 bits. I have tried mono for raspbian and for the standard debian 10. After every change i tried MP1.71 and 1.72 bot with the old shisharp file, aswell as with provided ones for ARM and also the ARM64 version.
Nothing helped.
I even tried compiling mono on the raspberry pi myself. But that broke things even more. Normally. I’ll get atleast the loading screen from MP. After compiling mono, not even that worked.

While installing mono i noticed following message: “Mono precompiling /usr/lib/mono/4.5/Microsoft.CodeAnalysis.CSharp.dll for arm (LLVM disabled due to missing SSE4.1”. Could this maybe cause the trouble?

Anyway, here are some stats and logs from the latest test.

pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.19.118-v7l+ #1311 SMP Mon Apr 27 14:26:42 BST 2020 armv7l GNU/Linux
pi@raspberrypi:~ $ mono -V
Mono JIT compiler version 6.8.0.123 (tarball Tue May 12 15:31:43 UTC 2020)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           __thread
	SIGSEGV:       normal
	Notifications: epoll
	Architecture:  armel,vfp+hard
	Disabled:      none
	Misc:          softdebug 
	Interpreter:   yes
	LLVM:          yes(610)
	Suspend:       preemptive
	GC:            sgen (concurrent by default)

Terminal-MP-mono-Debugger.txt (423.8 KB) mono_crash.0.1.txt (51.0 KB)