Samsung TV UE65MU7000 Video Stutter/Artifact in Direct Play

[tmissoni_gmail_com]

Hello Gents,

Server Version#: 1.17.0.1709
Player Version#: 4.5.1

My setup:
Plex Server installed on a QNAP TS231P
Plex Player installed on a Samsung TV UE65MU7000
Connection via ethernet cable. 1gb between the NAS and the Switch and 100mb between the TV and the Switch (TV limitation)

Issue:
I’ve been using plex since a year, and only recently I’m experiencing video stuttering/interruptions/artifacts playing large size files, in Direct Play. This, obviously, happens everytime in 4k mkv movies. Bandwidth does not seem an issue, as when playing the file, I see that the bandwidth usage goes up to 12/12mbs. The same usage happens when using the Plex App on my Mac.

Doing a speedtest on my TV, I can peak easily 50mbs

All settings on Server and on the Client are set to stream with Original Quality.
I’ve tried to disabled the secure connections without any success.

All of this has been starting I believe since April/May, after a server upgrade. Is it only a coincidence?
What logs do you need to understand the issue?

Please, help out.
Cheers,
Tommaso

[tmissoni_gmail_com]

Attached the XML of the file and the Server Logs1996.xml.zip (9.5 KB) Plex Media Server Logs_2019-10-01_11-34-59.zip (2.3 MB)

[yoanndemange77_gmail_com]

Hello,

same for me, when I use the same movie, or some files up to 70 gb, I got freez on my samsung TV 4k. I think the movie needs more than wifi card can deliver. And the lan is 100 mb/s on those tv.
I think for those types of files we need 1 gb/s connexion.

I’ll try with my xbox one x or ps4 pro whith lan connexion if I got freez too or not.

[nibbles]

That rip has 46 streams in it. I would load it up in mkvtoolnix-gui and remux at least 40 of those out of there, especially all the PGS subs.

Also because you analyzed it, plex is reporting in the XML file that it needs uber bandwidth:

requiredBandwidths="106432,95821,91664,89726,87798,85935,81489,80005"

Can you stuff 106 mbps in a 100 mbps network?

[tmissoni_gmail_com]

Hi Nibbles,

thank you for your answer.

Yesterday I did remux it removing all audio tracks except the DTS one and some subtitles. It now works pretty good.

Obviously you cannot pretend to have a good framerate if the bandwidth is not enough, but I would have expected to see a usage of the network close to 100mbps, while, as shown in the screenshot, it was barely 12mbps. That is what is strange to me. If I have a network bottleneck, I would like to see the application fill up my resources.

Cheers.

[nibbles]

It’s easy for me to have read the wrong units for those, though. I’m just guessing that they are in kbps based on the other similar entries in the XML file.

I have the same experience as you watching some of the dashboard bitrates. So there’s another reason I’m skeptical of my own analysis, but my dashboard graph has been working well for me lately. It’s more the numbers in the small summary at the top that I suspect.

It said in a website article that Smart TVs have memory constraints, and I’ve read in the forums about having too many tracks.

Maybe you hit a limit from 2-way traffic, but I have a feeling that your best usage pattern is to put an Apple TV 4K type of device before the TV, which has a 1Gbps link and HDMI output to the TV. I suspect TVs were designed to Netflix only a 1080p at 20 Mbps through their ethernet ports.

Have a nice day.