Thanks MO for you fast response…
Since I´m not that deep in that physics, to know who is responsible for the driver support, I asked here, because i thougt it is the HW vendor… Thanks for clarification!
How ever I tried alot with 2 different Rock PI4+ v1.72.
I tried the latest official Libreelec Images and also the nightlies. And there, I have a several problems…
A short summary of my major issues:
Audio Glitches if I use PCM, since there is no Passthrough available
No HDMI CEC, tried different TV´s and AV Receivers, where I have no Problem with Libreelec 10.0.1 on a Raspberry Pi 4 or x64 Windows 10 with Kodi 19.3
Only a small Picture in the Middle of the TV with a max. Resolution of 1024x768p when I connect the Rock PI 4 HDMI to the TV via an AV Receiver. With one Sony TV I have the same Issue, when I connect the Rock Pi directly to TV.
With the same Setup and Cables I have no Problem with Libreelec 10.0.1 on a Raspberry Pi 4 or x64 Windows 10 with Kodi 19.3
Full HD and 4K Video and Menu are running really smooth on the Rock Pi4, if there wheren´t the upper problems.
To answer your question, why I want to use Libreelec native, and not with the Kodi App on Android:
I also tried the Android Image with the Kodi App, but there I have the Issue, that high Bitrate 4K HDR films with HD audio, will no run smooth (hanging / stuttering Video and Audio).
The same problem I have on 2 different Sony Android TVs with Kodi the Kodi App…
I don´t have any of all upper Issues with the same Setup, Network, Sources, Cables,… with Libreelec 10.0.1 on a Raspberry Pi 4 or x64 Windows 10 with Kodi 19.3
So far to my Problems…
I thought, the Rock Pi4 B+ V1.72 with much better HW Specifications then my well “working” Raspberry Pi4, will work minimum as good as the Raspberry, but today it isn´t