Correct, it buffers every few seconds of playback.
No single CPU core is every maxed out. The transcode folder is on an SSD (recently moved there for troubleshooting). No disk is maxed or even close to maxed. Nothing is virtualized, windows is the primary OS and i have PMS installed directly in it. All installed on an SSD as well.
When I get home ill run the jellyfish test and figure out how to post the logs. Anything personal i should worry about in them before posting?
I redact my email address from the logs I post and account user names. I redact my public IP address if it’s in there. If you do a reboot as suggested first, there won’t be much in the logs. We only need the ones timestamped after the reboot.
WOW. I’m going to have to give this a try. I had no idea. I read a couple comments down on the top post, about a display port emulator fixing these issues. I have my monitor hooked up via DVI. I wonder if i use the HDMI or Display port if that will work? Either way, i may stop using RDP all together
oh that’s interesting. Thanks for the heads up.
I’m not able to gather the logs tonight as I have a user streaming content…
I did however restart the whole server and log into windows with a KB and monitor… and no RDP… This gave me minor success as the transcoder can hit 1.3x, but utilization is still very low. Running the 150mbps jellyfish it struggles to hit .8x with it dipping down to .2x…
Watching the live console I dont see any obvious errors or warnings other than “error issuing curl_easy_perform(handle): 60” which I see occasionally while its transcoding. Is there anything specific I should be looking for?
I will test the jellyfish 140 mbps 4k uhd hevc 10 bit file when I get home, I need to disable my tautulli rule that blocks 4k transcodes 
The error 60,
CURL_PEER_FAILED_VERIFICATION (60)
The remote server's SSL certificate or SSH md5 fingerprint was deemed not OK.
Do you have IPv6 running and/or any security software, VPN, anti-virus, anti-malware running on the server computer? Not sure why you’re getting SSL/TLS errors.
Things to look for:
- error
- critical
- fail
- exception
- ipv6
- regained
- buffering
- throttling
- broken pipe
- client closed
those can be indicative.
I’ve got everything running through a pfsense box with pfblocker which blocks a lot of the telemetry stuff from plex. Ipv6 is disabled across everything. No vpn/antivirus/antimalware.
Ill have to look through the console/logs to see what i see. That was the only error I was getting, i did see a couple blue flagged items but didnt pay to much attention to the regular texts.
unfortunately, mine seems to be acting a bit wacky as it is not doing hw enc or hw dec using my intel QSV on this 4k file. It is using my CPU. on the non-4k jellyfish files and some similarly encoded 4k movies it uses my hw transcode, but not on this one.
Some older cpus that have QSV don’t have support for the highest bitrate and bit depth 10bit HEVC with wide color gamut. Your PMS log would probably mention if the hw dec test are all failing with a message like “No support for codec hevc profile 2”
I started having weird buffering issues from 1.17 onward (1.17 appears to have huge transcoder updates - maybe unrelated). I know you started on 1.16.6.1592 but rolling back to this from 1.18.x made transcode issues disappear for local and remote streaming. I also grabbed a 1660 recently because 4K transcoding was pegging my ageing processor and thought the problems I was having were related to this (you mention transcoding worked well for a while there).
Symptoms for me were log entries showing 0b/s bandwidth for clients with the clients stuttering, skipping and eventually buffering endlessly. I tested drive throughout, network performance, RAM quality and reverted to a fresh Plex install with a downgrade fixing the problem. Beyond this I haven’t tested further, but the TV artwork updates (or lack thereof) will force me to soon.
Maybe worth a shot?
*edit: additional symptoms and testing details
Apologies on the delayed response, I’ve been slammed with work lately. I did manage to look through the live console while it was running and saw no such errors or flags pop up even with verbose logging. I’m very hesitant to post the logs with what i see going through them (file locations, etc), no disrespect to anyone here. I’m going to DDU the drivers and reinstall them, as i don’t believe i did so when pulling out the other nvidia card. All this being said I should hopefully be getting 1gig internet soon so i may not need to transcode UHD content when im away, however i would still like to assist in the resolution of this for others.
It has been ALONG time since ive played with this. I wanted to update everyone. I switched to unraid recently… along with that Im using the official plex docker with gpu enabled via nvidia unraid. THIS THING IS CRUSHING it. it must be something with windows because unraid plex is transcodoing at 8.9x speeds which is what I was expecting previously…
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