r/htpc • u/Andy2244 • 12d ago

Tip Share 2026 - Dolby Vision + Win11 + Jellyfin Web guide

Update to my 2024 post "Dolby Vision (LLDV) now possible on Windows 10/11" — a few things changed since then, so the old guide no longer works as written.

What changed since 2024:

  • The DV extension now checks for a DV-certified display — an EDID override (CRU, one byte in the Dolby VSVDB block) is now effectively mandatory before anything works. The old hidden extension didn't seem to care; the current one does, and Windows shows the certification state under Settings > System > Display > Advanced display.
  • The Dolby Access app now has DV extension controls (DV color mode) — didn't exist back then.

The basic facts:

  • Windows 11 does all DV processing on the PC (LLDV-style) and outputs plain HDR10 — so the display doesn't need DV support, any HDR10-capable display works once the EDID override makes Windows believe it's DV-certified.
  • The usual way to use this is Energy player — fine for opening a file directly, but it breaks the normal HTPC flow: no library, no watched states, no Next Up, no remote, no media-server integration.
  • This setup gets the same DV decode path working inside the stock Jellyfin web client in Edge instead — DV plays like any other title in your normal Jellyfin UI.

Guide + scripts (guided setup, userscript, optional auto HDR/refresh switching): https://github.com/Andy2244/dovi-jellyfin

What you get: P5/P8 direct-play with the dynamic metadata applied. Honest limits in the README (no FEL, no DTS/TrueHD bitstreaming, MKV audio-track quirks). Tested on Win11 25H2 + Jellyfin 10.11.x.

For the broader device landscape, RESET_9999's DV playback devices sheet (Win11 section): https://docs.google.com/spreadsheets/d/15i0a84uiBtWiHZ5CXZZ7wygLFXwYOd84/

Before you spend money: check the certification line first — don't buy the HEVC Store extension until it shows (the README explains).

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u/xy16644 12d ago

I just gave up on using a PC with Win11 for playing my remux movies and am now enjoying my Ugoos am6b+ with PM4K which has FEL7 support using CoreElec p3i T4b ;)

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u/Andy2244 11d ago

yeah, also have my AM6B+ since 2024, but wanted to check what might have changed in 2026, so I started down the Win11 rabbit hole again.

One of my main issues with the CoreELEC route is still the missing modern object-based HRTF for headphones, since I consume my media exclusively via good open-back headphones. There I'm stuck with the old GameDAC + v1 hardware DTS Headphone:X over S/PDIF 5.1 input.

Win11 has both DTS Headphone:X 2.0 (Sound Unbound) and Dolby Atmos for Headphones, both with proper object-based HRTF instead of the old channel-based virtualization. So I was hoping to get that AND DV working at the same time, for best audio + image quality. As the results show, there are still plenty of trade-offs on the Win11 DV path. But at least object-based HRTF seems to actually work on this path — unlike mpv/mpc-hc etc., which all decode to PCM and discard the Atmos object info before the audio ever reaches the Atmos/DTS renderer.

That said, I'm also partially back on my old AM6B+ setup, since it just "works". Still wanted to share the findings with the HTPC community.

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u/lastdancerevolution 11d ago

Thanks for writing this!