Hello and @balbes150 thank you for everything.
I installed Armbian_5.99_Aml-g12_Ubuntu_disco_default_5.3.0_desktop_20191122 on an sd card, i have booted untill starting desktop enviroment and then it is only showned a black screen with cursor on the to left corner.
KIII PRO box.
Philips PFL32 TV, tested on samsung tv, the same.
I read about this...
But i could realy need some step by step guidance please.
Can i provide you with some logs?