gpu-next + vulkan under heavy system load leads to partially presented or out-of-order frames on amdgpu

[CounterPillow]

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Important Information

Provide following Information:

• mpv version: mpv v0.37.0-663-g9cee44147a and libplacebo v7.349.0 (v6.338.0-120-g7b294350-dirty)
• Linux Distribution and Version: Arch Linux, x86_64, Linux 6.8.2-arch2-1
• Source of the mpv binary: mpv-build
• If known which version of mpv introduced the problem: N/A
• Window Manager and version: kwin_wayland 6.0.2
• GPU model, driver and version: AMD Radeon Vega 10 iGPU (Ryzen 7 Pro 3700U "Picasso"), Mesa 24.0.3, RADV
• Possible screenshot or video of visual glitches: https://overviewer.org/~pillow/up/0306cb4fe7/corruption_vulkan_gpu-next.mp4

Reproduction steps

Be on a Ryzen 7 Pro 3700U, have some CPU-heavy task running in the background making the whole SoC throttle to stay within its power envelope.

mpv --no-config --log-file=/tmp/mpvsucks-vulkanagain.log --gpu-api=vulkan --profile=high-quality --vo=gpu-next --hwdec=auto --ytdl-format='bestvideo[height<=1080]+bestaudio/best' https://www.youtube.com/watch?v=dpiYR1_CsiI

Glitches do not happen with OpenGL. Glitches do not happen with vo=dmabuf-wayland.

Glitches also occasionally occur without CPU heavy tasks in the background, probably due to something taking a little too long and ruining the timing.

Expected behavior

mpv drops the whole frame.

Actual behavior

mpv partially draws the frame, sometimes drawing a few frames in the future or past but only in parts, and is generally unpleasant to look at.

Log file

https://overviewer.org/~pillow/up/d916e5bf9c/mpvsucks-vulkanagain.log

Sample files

YouTube link in the repro command should suffice.

[CounterPillow]

And here's another logfile with both mpv and libplacebo updated to latest master and rebuilt without whatever weird shit keeps touching my git checkouts preventing the git pulls of ./rebuild from working: https://overviewer.org/~pillow/up/53b48aa64b/mpvsucks-vulkanupdated.log

[zhangn1985]

same happens on arm device: Rk3288. --vo=gpu-next --gpu-hwdec-interop=drmprime very high system load compares with --vo=gpu --gpu-hwdec-interop=drmprime-overlay

with a cooling fan at full speed, system temperature still higher than 70C.

and also glitches.

[voidastro4]

I have an issue which looks identical to the demo video provided here.

Ryzen 5000 U-series, amdgpu Sway. 4K screen, scale factor 2.

vo=gpu-next gpu-api=vulkan gpu-context=waylandvk hwdec=vulkan profile=gpu-hq

No system load. No load with video playing. hwdec appears irrelevant. Source is h264 480p video. Happens when playback speed is > ~2x Issue manifests when fullscreen or window size crosses a threshold.

commenting out profile=gpu-hq Resolves the issue.

[kasper93]

Might be related to: https://github.com/Nevcairiel/LAVFilters/issues/496 https://github.com/GPUOpen-LibrariesAndSDKs/AMF/issues/380 Unless it also happen without hwdec, which the above issues are mostly about.

[CounterPillow]

Only happens with hwdec, can still reproduce as of current master.

[kasper93]

Can you reproduce with ffplay or ffmpeg?

[CounterPillow]

No, on account of ffplay crashing xwayland.

[llyyr]

This also only happens with hwdec=vaapi + gpu-next, and not with hwdec=vulkan + gpu-next as reported in IRC.