Hello Plexians, We have finally added HDR tone mapping support for compatible Intel iGPUs on Windows platforms, and could use your help testing it out before we add it to an official release! Unfortunately Intel drivers only support tone mapping for the following GPUs: TGL (Tiger Lake), DG1 (Intel…

We’ve seen that type of issue before. Until a fix arrived, the workaround was to run PMS as a proper Windows service. (Which is recommended anyway, if your Plex server machine is running headless.)

@tonigreywater can you try something for me? can you try starting PMS with no RDP session and look at the list of GPUs and then stop PMS, start RDP, start PMS, and take another look. Is it the same list?

You’re onto something… no rdp: [image] with rdp: [image] I used SSH to restart Plex, as it sadly doesn’t have a way in the web ui to do so. To be clear, the system only has one GTX 1660 installed. edit: added second image P.S.: I can also confirm @jibbers42 findings. With QSV tone mapping, th…

Intel N100 Windows 11 v23H2 Onboard graphics with most recent intel driver @chris_decker08 I agree I think you’re on to something. I retested after starting plex over RDP instead of using RealVNC like normal. This appears to fix the issue for me. H264, HEVC and AV1 all transcode in hardware, i…

PMS looks for GPUS at startup time, and it appears that windows is shuffling around GPU indexes in an odd way when remote connections are started and/or ended. I will look into a way to dynamically re-load GPUs when they change, but in the meantime i would suggest you two look into using PMS as a S…

Thanks for the info. It appears to me they are solving an issue where hw encoding doesn’t work while using RDP. Isn’t it the opposite for us? I regard disabling RDP hardware acceleration more like a workaround and detrimental for accessing the server. Running Plex as a service also complicates upda…

It appears to be that windows sees a new monitor attached to an nvidia graphics card as a separate GPU. When combined with the fact that windows sees an rdp session as a new monitor it messes with PMS’ cache of gpu devices. If you start PMS without RDP and then try to transcode is it successful?

Yes, if I exit PMS via RDP, then after closing RDP run PMS via SSH, select the Intel GPU in Transcoder settings it also does Hardware Transcoding fine.

I’m very confused about why and if this should be HW transcoding. I’m on a 13500, windows 10, downloaded the preview and may or may not have updated once I found out that 13 series wasn’t compatible. I can’t remember but I’m on 1.40.1.8190 regardless. Yet, I see this. [IMG_5646]

[Plex Media Server] Forum Preview for Tonemapping on Windows with Intel iGPUs

Plex Media Server

OttoKerner March 14, 2024, 12:51pm 87

Here is a user report and HowTo about the issues of running video hardware transcoding in the context of a RDP session: Windows Remote Desktop breaks HW Transcoding (QSV) - Here's the fix!

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4K HDR Hardware Transcode Plex Media Server server-linux	55	1721	May 31, 2022
PMS HDR -> SDR Tone Mapping with Intel quicksync General Discussions server-windows	40	2714	July 5, 2024
No 4K HDR HW Transcoding on Windows using 10th Gen Intel Plex Media Server server-windows	7	167	July 11, 2023
How do I make sure PMS uses new GPU? Plex Media Server server-windows	54	846	May 3, 2023
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[Plex Media Server] Forum Preview for Tonemapping on Windows with Intel iGPUs

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