Green glitches with Vulkan hardware decoding for YouTube videos

[laichiaheng]

mpv Information

mpv v0.41.0 Copyright © 2000-2025 mpv/MPlayer/mplayer2 projects
libplacebo version: v7.351.0
FFmpeg version: n8.0.1
FFmpeg library versions:
   libavcodec      62.11.100
   libavdevice     62.1.100
   libavfilter     11.4.100
   libavformat     62.3.100
   libavutil       60.8.100
   libswresample   6.1.100
   libswscale      9.1.100

Other Information

- Linux version:
AME="Arch Linux"
PRETTY_NAME="Arch Linux"
- Kernel Version:Linux laichiaheng 6.18.2-1-cachyos #1 SMP PREEMPT_DYNAMIC Thu, 18 Dec 2025 19:49:41 +0000 x86_64 GNU/Linux
- GPU Model:0b:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 48 [Radeon RX 9070/9070 XT/9070 GRE] [1002:7550] (rev c0)
- Mesa/GPU Driver Version:Mesa 26.0.0-devel (git-7219411f78) (LLVM 21.1.6)
- Window Manager and Version:kwin 6.5.4-3
- Source of mpv: chaotic-aur repo
- Latest known working version: I don't know.
- Issue started after the following happened: use --hwdec=vulkan

Reproduction Steps

mpv --log-file=vulkan_hw.txt --no-config --hwdec=auto --fs https://youtu.be/XSAFFq_Aw3g

Expected Behavior

Act like vaapi

Actual Behavior

Video_2025-12-25_11-11-00.mp4

Log File

vulkan_hw.txt

Sample Files

YouTube videos.

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.

[kasper93]

@cyanreg: And ideas?

[Bl4ckspell7]

Same issue for me.

OS: Arch Linux x86_64
Kernel: Linux 6.18.2-arch2-1
Display (SDC419C): 2880x1800 @ 2x in 14", 120 Hz [Built-in]
DE: GNOME 49.2
WM: Mutter (Wayland)
CPU: AMD Ryzen 9 8945HS (16) @ 4.00 GHz
GPU: AMD Radeon 780M Graphics [Integrated]

hwdec=vaapi	hwdec=vulkan
mpv \ --no-config \ --hwdec=vaapi \ --log-file=hwdec_vaapi.txt \ --geometry=x100% \ video.mp4	mpv \ --no-config \ --hwdec=vulkan \ --log-file=hwdec_vulkan.txt \ --geometry=x100% \ video.mp4
hwdec_vaapi.txt	hwdec_vulkan.txt
hwdec_vaapi.mp4	hwdec_vulkan.mp4

[kasper93]

Could you try ffmpeg from git master?