I'm currently running a Dg2 (Arc A310) system with LE 13, and it works pretty well. HDR and audio passthrough works! (... with the HDMI 10-bit max patch applied)
But I have an issue where the playback of 23.976p 2160p HDR content drops frames (= av corrections) pretty constantly every 12 to 18 minutes. The hardware is more than capable of decoding even AV1 8k60 hdr content, so it shouldn't be a hardware "is too slow" issue.
The logs also do not indicate anything wrong. The 23p HDMI mode, "3840x2160 with 3840x2160 @ 23.976025 Hz," looks good.
I know with passthrough enabled, Kodi is not able to resample the audio on the fly to accommodate for drifting due to framerates not matching (content =/= display). But is this even a thing on the hardware? I was under the impression that Intel (and AMD) have pretty good HDMI timings, so a frame-drop-less playback is pretty much plug and play. Whereas Nvidia needs hdmi clock tunings...
Did this change? Is this different on Linux?
Is there anything I can do? It drops frames regardless of the audio codec used for passthrough.
Does the setting "maxpassthroughoffsyncduration" help?
Or is the only thing i should test an EDID mod with different HDMI timings?
Any help is appreciated! Thanks! 
(The attached log is with playback through a plugin (pm4K) - however, the dropped frame issue also happens with playback through Kodi without any plugin in the chain. It was just the log that I had flying around.)
