Android 7.1 extending second screen

allemon

Can somebody give an advice how to implement the same dual screen feature like on 3288 Board, like on this video starting from 1:23

https://youtu.be/1WAShavMZ5U?t=83

I need to extend primary display on rk3399 so I can see big layout on the both display that are connected

Is it to modify framework native (hwcomposer, surfaceflinger etc.)

Learner379

Hey @allemon,

I am also trying to get the extended display working on RK3399 board. Have you got any insight regarding this?

Thanks.