Hi,
I have QNAP TVR-x73e with AMD RX-421BD inside, got plex pass and found out now that H265 HW transcoding is not supported at all on linux for AMD.
Is it in PMS roadmap adding it?
Plex does not publish roadmaps.
As was with the Intel QSV hardware transcoding and with the new ARMv8 support, there will be an announcement when there is something tangible to preview / test / help in the development of.
Hello
QNAP ANNONCE TVS-473 FOR THE BEST NAS FOR PLEX : The Best NAS for Plex | QNAP
But your compatibilitie list for TVS-473 said Hardware – Accelerated Transcoding = NO
I buy this and plex premium i’m really disappointed 
Powerful transcoding to streamline Plex media experience
With its large potential storage capacity, the TVS-473 is also an ideal multimedia center. Store all of your movies, photos, and music on the TVS-473 and use Plex Media Server to enjoy a seamless multimedia experience across all of your devices including laptops, mobiles, consoles and smart TV. The TVS-473 also supports dual-channel 4K to 1080p hardware decoding and real-time transcoding to convert videos to universal file formats for smooth playback on multiple devices. With the TVS-473, you can enjoy instant access to your videos at any time.
Might I suggest you also review QNAP’s web site?
Where they, the manufacturer state “No”
Just because HW transcoding support does not exist today doesn’t mean anything.
It could be announced as soon as tomorrow … 
my references come from qnap’s website ?
Your reference refers to the TVS-X73 series
Any news? Canceled my subscription, money well wasted 
It’s never going to work unless QNAP builds radonsi driver into their system. Since they haven’t done it yet, I wouldn’t bet on it. Keep the NAS for everything else and build a small Plex server from an Intel NUC8i5BEH.
A request for the same feature exists already, and it has more votes.
Therefore this one is closed.
Votes are given back to the users who voted on this request. Please think of re-voting in the other thread if you still want it.
Please search before creating a new suggestion thread.
Only one feature per thread.
See feature suggestions, sorted by most popular first
https://forums.plex.tv/c/general/feature-suggestions/l/votes
For those wondering why this thread is reopened, the AMD RX-421BD does not use Video Core Next (VCN) but, in fact, it uses an earlier version of AMD’s video codec, Video Coding Engine (VCE), as described at the link:
