@avaf @igorpec So, as far as I understand with regards to graphics, I can either choose mali proprietary (which I couldn’t get to work) or I can try open source limadriver. In either case, I will need to address both kernel and userspace, correct?
To at least get going, I compiled kernel 5.5.2 with limadriver, 'cause I think I can follow the instructions for getting an accelerated desktop after that (although for me, that would be much easier on Slackware than on Ubuntu or Armbian, but beggars can’t be choosers ). I did get the kernel running, but not with the mainline 5.5.2 dtb (called sun8i-h2-plus-bananapi-m2-zero.dtb). It only booted with your dtb, @avaf. Perhaps because I used your config with the mainline device tree?
Also, I noticed that the thermal driver is not included in 5.5, which seems rather dangerous. So, it would be nice indeed to be able to see what patches you included in your kernel tree, and to see which various patches you applied to mainline.
@igorpec, of course it would also be nice to see armbian kernel sources, to compare device trees, but I couldn’t find them? Any pointers would be more than welcome!