Server Version#:QNAP TS-453A (running plex server version 1.30.0.6359
Player Version#: appleTV 4k 8.13 (4532), LG OLED 65C8 native plex version 5.52.3, platform v4.4.0
Hi
I am hunting around to see why my aTV is dropping frames on SOME UHD movies, and realised that my LG’s built in app does not. I have tested a few of my UHD movies, and tried to find some conclusion, but cannot. See table below. I have movie #8, which is a whooping 120Mbit (and I have checked, the mikrotik router bounces between 70 and 210Mbps while playing, so it is actual), and it plays well on both. I tested several audio formats, and it doesn’t solve or break a playback. Almost all the files are HEVC MKVs.
If you look at #2 and #3, they are identical in every aspect (I looked at more than these), their bitrate is similar, yet #3 plays on both, while #2 stutters HEAVILY on the aTV, and plays fine on the LG. And this is a C8 TV, at least 5 years old, so I’d suppose it has similar capabilities to a 4K appleTV.
This basically rules out the files themselves, the qnap server, the network, and to some degree the TV itself.
I am really frustrated, I hate the LG app, want to use the aTV. I was thinking about buying the newer version, but based on this, it might not be a performance issue and might not solve it.
Any ideas?
the only conclusion I found is that LG wont play Dolby Vision, wile aTV tries and fails.
UPDATE: I found a Dolby Vision file that plays perfectly on the aTV, despite being 60Mbps and 7.1. I am more confused than ever.
Apparently, it’s to do with the latest update v8.12 … I also can confirm my LG G2 native player works flawlessly and the Apple TV Plex app streams the same content like garbage. Wonky frame rates and stuttering make some UHD movies unwatchable.
Hopefully Plex pushes an update soon because it’s very frustrating.
Hey thank you for that. I found something interesting.
So I wanted to watch a movie and found it stuttering so I thought I’ll give this a try. I switched to old video player and all it gave me was a freeze frame. So I looked and it was trying to transcode the video and the server just chocked. ‘Convert to 4k’ was selected and even if I selected ‘original quality’, it would jump back to transcode. Something was forcing a transcoding.
I randomly selected another video that was bad before and now it played beautifully. Then I realized I selected a video that vas Dolby vision. Sure enough, my tv was in Dolby vision.
So I checked the setting ‘match content’ but I knew it was on - it’s pretty stupid to look at 4k if you’d let your tv convert it. But I realized there is a ‘default’ setting there and sure enough, it was DV. With the classic player, it was trying to force conversion to DV and couldn’t.
I set it to HDR, which is what my movie was and now it plays great.
But!
It wouldn’t do subtitles. As soon as I enable subtitles, it goes to conversion again. I guess it wants to burn the subtitles in the old player. So no win there either.
