Hi Chris, i had have 3 or 4 Movies, but I dont know what the bug do. After whatever it was, the Audio is async. With press one time on RW or FFW i can fix the async. But if I jump back with RW and come in front of the problematic point, it becomes async again.
If I use the Plex Player v9.2.8, the Problem was gone. But I dont want use, its so old.
It can be a problem by Exoplayer, because the Exoplayer was changed in 9.2.9.
At this time, i dont know the timestamp and I dont want to watch the movie again, i saw it so many times in the past and it doesnāt help anyone anyway, so the timestamp doesnāt matter.
The last 20 films I watched were all ok.
I have a Samsung QLED GQ75Q60RGTXZG and a Pioneer AV Receiver VSX-LX303.
then, while playing, ācursor downā on the shieldās center wheel to pop it up.
It will display for a bit with the lower playback bar then disappear again until you call for it.
So some tests Iāve conducted recently on the beta build
I played the same mkv file 3 times on the new Plex beta app, Then 3 times on Kodi ( Plex plugin )
Players have the same settings , passthrough enabled , direct play for both. No transcoding happened.
Itās a 1h 45m , 4k movie HEVC , bitrate average- 22mbps ( yes this test took a while lol)
Plex app beta
1st run showed - 9 dropped frames
2nd run showed - 5 dropped frames
3rd run showed - 7 dropped frames
Visible skips in the video each time an event happened, not at the same place either , quite random.
Kodi uses this maxpassthroughoffsyncduration , basically if the sync gets too far out itāll auto correct itself. Causing a skip or drop
It is known in that forum that the Nvidia shield is quite inconsistent with itās sync, sometimes shifting 80ms , it does auto correct itself though, the problem is sometimes the player will auto correct that and skip a frame.
With that setting you can delay the player doing that correction , Iāve tested that and it does work, the skips are almost all gone , at the expanse of sync going away slightly.
āHere especially Shield shortcomings of the audio driver implementation which caused fluctuating delay due to large software period size in their Audio-Hal resulted in skip issues in the renderer.ā
Takeaway ? If you must use passthrough Iād go for Kodi and use this setting at this time , itās quite possible itās different for each device the shield is plugged into as well. Some may never encounter it
Iām glad someone was able to show that passthrough was the issue. We speculated this in an old thread when this issue started, but the devs at the time said they couldnāt reproduce (which makes sense since itās an extremely variable issue).
I hope they can do something with this information and fix this issue.
I have 2019 Shield Pro ā Samsung HW-Q70T Soundbar ā Sony Bravia X950G.
I have refresh rate matching ON.
Any show/movie that requires passthrough audio (DD, TrueHD, DTS-HD MA) had this issue for me, but itās inconsistent and is more noticable for longer videos. As chris0101 pointed out, they only had 9 drops for a 1h 45m movie.
I recommend testing with a standard 4k 23.976fps movie. Iāve seen the drops with both h264 and h265 video at all resolutions though.
Thanks for testing ! Any chance you could test this for me
Going straight to the lg c1 with hdmi passthrough enabled ? Can you also try if you have it , a 4k file no HDR. Just trying to get your setup as close to my test as possible
The only other difference is my server is remote , its connected via 500mbps and never buffers so itās not a bandwidth thing . Although maybe more cpu intensive ?
Iām leaning towards itās an issue with how some passthrough devices drift out of sync, thatās why not everyoneās seeing it as thereās so many different setups , it could be solved if I had a different TV for example.
I may bring my shield to my parents over the weekend and test with their amp and see
I donāt see how that could make a meaningful difference ,
again I use Kodi on Nvidia shield from the exact same server , no such drops , the cache stays 99% full, it is not a bandwidth issue.
I can see Plex pulls 280 Mbps on a 300mbps connection the buffer fills and it plays instantly, there is no situation where itās waiting for the connection.
With the sheer amount of people having this issue , also the same issue on Kodi , pretty sure itās passthrough timings causing an issue.
Itās only the Nvidia shield that has this issue for me, my TV direct plays without issue btw
How does passthrough from my Shield ā Onkyo TX-RZ receiver ā LG C1 OLED not get impacted ?
My test TV and my server are about 2 meters from each other. Total amount of cabling involved ā less than 5 meters end-to-end
If your assertion is true, I should also be impacted, right?
I use PMS but you speak of Kodi. Not the same thing here.
Perhaps your problem is with Kodi itself?
āPlex for Kodiā is a GUI add-on to base Kodi. It has no impact on the core server.
