Black flashes with display-resample interpolation and vo=gpu-next on specific video

[q3cpma]

Important Information

Provide following Information:

• mpv version: 0.36.0
• liplacebo version: 6.292.1
• Linux Distribution and Version: gentoo
• Source of the mpv binary: vapoursynth portage tree (exactly the same build as mainline, with vapoursynth added)
• If known which version of mpv introduced the problem: unknown
• Window Manager and version: bspwm git
• GPU driver and version: mesa 21.1.3 (radv/radeonsi)
• Possible screenshot or video of visual glitches: no

Reproduction steps

With

mpv --no-config --vo=gpu-next --video-sync=display-resample --interpolation vid.webm

I randomly get one or two black flashes after 1 second of starting or pause->play. When it happens, the mistimed/delayed count goes up, but dropped stays at 0. DS also fluctuates wildly before settling on 2.000.

Adding --gpu-api=vulkan --tscale=catmull_rom makes these way more reproducible (2 or 3 at the beginning).

These go away with --vo=gpu.

Log file

Here's a log when it happens (two flashes) with the first command line: http://0x0.st/H_ng.log

Sample files

Here's the only video on which it happens: http://0x0.st/H_nE.webm

[Dudemanguy]

Duplicate of #11958 (without osd-bar, the screen stays black).