Graphics

[taros]

Thanks for the feedback. Is this because Android has binary support from 3rd party phone vendors and sort of has by proxy wider hardware support, (but not necessarily open source drivers)?

Trying to understand the landscape. Thank you.

Traditional Linux distributions use the "X11" software for graphics. X11 (or sometimes called Xorg) needs an X11 graphics driver and the companies do not pay to create such an X11 graphics driver.
However, the companies pay for a graphics driver that works in Android. We are talking about accelerated graphics driver with source code.
The existing drivers are at http://malideveloper.arm.com/resources/drivers/

There are a few options. For example, Wayland, Ubuntu Touch and WebOS can use the Android graphics drivers. 
https://en.wikipedia.org/wiki/Hybris_(software)
It should be possible to get Wayland and Ubuntu Touch to work on Pine64, with graphics acceleration.