Nvidia true hdr flag not working

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mpv Information

mpv v0.41.0-64-g3d980d8ec Copyright © 2000-2026 mpv/MPlayer/mplayer2 projects
 built on Jan 10 2026 00:10:37
libplacebo version: v7.358.0 (v7.351.0-138-g65a41a6-dirty)
FFmpeg version: N-122399-gf59968720
FFmpeg library versions:
   libavcodec      62.23.102
   libavdevice     62.2.100
   libavfilter     11.10.101
   libavformat     62.8.102
   libavutil       60.23.100
   libswresample   6.2.100
   libswscale      9.3.100

Other Information

- Windows version: Windows 11
- GPU model, driver and version: Nvidia 5090 laptop
- Source of mpv: shinchiro 
- Latest known working version: never
- Issue started after the following happened: latest Nvidia Video Resolution improvements https://www.nvidia.com/en-us/geforce/news/nvidia-app-update-dlss-overrides-and-more/

Reproduction Steps

Nvidia added with latest update according to this post: https://www.nvidia.com/en-us/geforce/news/nvidia-app-update-dlss-overrides-and-more/ on-screen indicators for Video Super Resolution and Video HDR: https://gyazo.com/f389e1779e814bff1b7055509e61ddc0

But after enabling it here: https://gyazo.com/ba50e28b75a072ac5847cfc8a7e9353a and adding in mpv.conf: vf=d3d11vpp:scaling-mode=nvidia:format=nv12:scale=2.0:nvidia-true-hdr

the indicator from mpv stays in RTX VSR state: https://gyazo.com/a6d06e937c5ac40c94b1c887fd2f522d it doesn't upgrade to RTX HDR state like all youtube videos from Chrome: https://gyazo.com/1386ed09783d17496970e9431d8a275e

Expected Behavior

indicator shows RTX HDR

Actual Behavior

indicator shows RTX VSR

Log File

output.txt

Sample Files

No response

I carefully read all instruction and confirm that I did the following:

• [x] I tested with the latest mpv version to validate that the issue is not already fixed.
• [x] I provided all required information including system and mpv version.
• [x] I produced the log file with the exact same set of files, parameters, and conditions used in "Reproduction Steps", with the addition of --log-file=output.txt.
• [x] I produced the log file while the behaviors described in "Actual Behavior" were actively observed.
• [x] I attached the full, untruncated log file.
• [x] I attached the backtrace in the case of a crash.