Subtitle rendering issue on latest nvidia drivers with vulkan

[Vodes]

mpv Information

mpv v0.39.0-650-g3550ec52 Copyright © 2000-2025 mpv/MPlayer/mplayer2 projects
 built on Jan 26 2025 00:05:18
libplacebo version: v7.350.0 (v7.349.0-30-g056b852-dirty)
FFmpeg version: N-118354-gec4d3dc5b
FFmpeg library versions:
   libavcodec      61.31.101
   libavdevice     61.4.100
   libavfilter     10.6.101
   libavformat     61.9.106
   libavutil       59.55.100
   libswresample   5.4.100
   libswscale      8.13.100

Other Information

- Windows version: Microsoft Windows NT 10.0.26100.0/26100.2605
- GPU model, driver and version: RTX 4080 Super, 572.16
- Source of mpv: scoop `mpv-git` (shinchiro builds), yes I did update to latest after
- Latest known working version: /

Reproduction Steps

mpv --no-config --gpu-api=vulkan gmmklh.mkv
(Also happens on gpu-next)

Then simply upscale the video. In my case just fullscreening on a 1440p monitor.

Expected Behavior

On previous driver versions (or --gpu-api=opengl) or when not upscaling it looks like it's supposed to.

Actual Behavior

This weird rendering bug on certain letters but not all the time and not every line.
(Look at the p)

Log File

output.txt

Sample Files

https://files.catbox.moe/gmmklh.mkv

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

• I tested with the latest mpv version to validate that the issue is not already fixed.
• I provided all required information including system and mpv version.
• 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.
• I produced the log file while the behaviors described in "Actual Behavior" were actively observed.
• I attached the full, untruncated log file.
• I attached the backtrace in the case of a crash.

[ValeZAA]

572.16 added Vulkan 1.4, no?

[Vodes]

Looks like it yeah
https://us.download.nvidia.com/Windows/566.36/566.36-win11-win10-release-notes.pdf
https://us.download.nvidia.com/Windows/572.16/572.16-win11-win10-release-notes.pdf

[JiLleON]

I encountered this issue yesterday. Reverting to 566.36 resolved the problem.

mpv v0.39.0-732-g57baf7e4 Copyright © 2000-2025 mpv/MPlayer/mplayer2 projects
 built on Feb  5 2025 08:36:36
libplacebo version: v7.350.0 (v7.349.0-30-g056b852-dirty)
FFmpeg version: N-118427-gff4fc6daf
FFmpeg library versions:
   libavcodec      61.32.101
   libavdevice     61.4.100
   libavfilter     10.9.100
   libavformat     61.9.106
   libavutil       59.56.100
   libswresample   5.4.100
   libswscale      8.13.100

- Windows version: Microsoft Windows NT 10.0.19044.0/19044.5371
- GPU model, driver and version: RTX 3080, 572.16
- Source of mpv: dyphire/mpv-winbuild
- Latest known working version: -

mpv --no-config --vo=gpu-next --gpu-api=vulkan

[raziel711]

I also am having a similar issue with 572.16 on Windows 11, but in my case it is with the OSD elements of the uosc script.

--gpu-api=vulkan:

--gpu-api=d3d11: