X server with tweaked Glamor module:

https://github.com/teacupx/xserver

Stable is branch "rockchip-1.19"; Experimental is branch "1.19-experimental".
I also made changes to the Debian package control files, in order to adapt them to Armbian Bionic. They can be extracted from the packages themselves.



Armsoc driver:

https://github.com/paolosabatino/xf86-video-armsoc