Hardware transcoding in windows server 2016 + quadro p400

Server Version#: 1.16.5.1554, plex pass
Player Version#: 7.20.0.11992 for android, web player also

Hello there!

After a period of not using plex pass because I had no capable gpu, I bought a quadro p400 for my server.
I installed the latest drivers and just started my plex pass again.

The problem is my plex server is unable to hardware transcode…

I am using:
H264 source material.
Windows server 2016 may update (2019),
quadro p400 with 436.02 drivers.
4k display dummy in the quadro card.
Quadro set as main gpu in bios.
access to server - RDP or IPMI kvm.

I used to use hardware accelerated transcoding in the past, with an intel igpu and I had no issues. It was another motherboard with a J3455 cpu, I was accessing the server remotely, just like now.

Now, it is not working. When selecting a different quality in the android player, it takes a while, sometimes I even get a (hw) in the dashboard for a second, but in the end it just goes to software transcoding.

What am i doing wrong?

Thanks in advance!

Hello!

I come back to add logs and picture.
I restarted the server. I played a file over internet from my android phone. It software transcodes. source file is h264. I downloaded the logs. Plex Media Server Logs_2019-09-05_09-55-11.zip (1.2 MB)

:frowning:

While reading some different topics online, I see one thing that dazzlez me and I do not know if this should be taken into consideration.
Requirements: Intel Quick Sync. Is this required even if I am using a dedicated GPU in order to use Hardware acceleration?

L.E. As per Hardware-Accelerated Streaming without Quick Sync? - #2 by teabag1701 Quick sync is not mandatory. Should work only with the p400 card.

Do you have a monitor or dummy plug plugged in to the server?

Hi Tiberius,
Yes, I have a dummy attached. I also enabled auto login in windows. Bios set to use P400 as main GPU. This should be my only “physical” display as I am accessing the server remotely, so not sure how to extend display.

Sep 05, 2019 09:54:33.325 [8524] ERROR - [Transcoder] [h264_nvenc @ 03b48400] OpenEncodeSessionEx failed: unsupported device (2)
Sep 05, 2019 09:54:33.434 [8112] ERROR - [Transcoder] [h264_nvenc @ 03b48400] No NVENC capable devices found

Might be driver issues. PMS is trying to use the hardware but they are not responding.

I am not sure what is going on as I tried many variants of quadro drivers for win2016, drivers for quadro win10, drivers for geforce, nothing worked.

I test installed windows 2019 and all is working. So I think I will move to windows server 2019 and leave windows 2016 behind…

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