PajPaj

Yes you should be able to run Sunshine - I haven't tested that one yet but it is supposed to be as good or better than Nvidia's GeForce LizardByte/Sunshine: Self-hosted game stream host for Moonlight. (github.com)

@roykWell done! I've just uploaded a new version of ffmpeg to my ppa.

@amazingfate HDR problem is solved by https://github.com/JeffyCN/FFmpeg/commit/2e578b9ce6f46c4e2ab7f5bc3e066a7be1d586bc

In my case, one of the videos which didn´t work was HDR10 (I think it has no DRM, but don´t know for sure). That same video played properly on my debian amd64.
@amazingfate Do you know if the Kernel issue you mentioned would apply in a case where the same video can be played in debian amd64? Also is there any solution to play the same videos which work on Linux amd64 on armbian?
Thank you  

@PajPaj I just did a clean install, unfortunately I can't get it to work either.
 
@amazingfate Do you've an idea what could be wrong? Installed everything the same as before except the udev rules and the lines in rc.local because these are installed automatically by your package (tried to set these manually to be sure). I assume that installing the original driver will cause gbm/X11 stop to work?
Chromium does work with hw accelaration, but only when I set the Preferred Ozone platform to X11, while before the clean install it only worked with this setting at Wayland.
 
With your image "Armbian_23.05.0" I've got the same result. (audio over HDMI is working)
cat /proc/version
Linux version 5.10.110-rockchip-rk3588 (armbian@next) (aarch64-linux-gnu-gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #1 SMP Thu Mar 2 08:08:28 UTC 2023
kodi.log lib-list.txt