testing with VS-rk3399 development board LibreELEC-RK3399.arm-9.0-nightly-20180717-873d2c9-rock960.img
Almost everything works fine except when stopping or exiting any kind of video content screen becomes black and loosing hdmi connectivity ... need the full reset / reboot to get back image on the screen.
I'm gonna try to provide later some logs and necessary debugging stuff.
P.S (off topic) Greetings chewitt , vpeter and CvH (Ovi from TBS here 
)