With ao=alsa mpv does not close sound card when paused

[bdantas]

• mpv version: 0.33.0
• Linux Distribution and Version: Tiny Core Linux 11.1 x86_64
• Source of the mpv binary: I compiled from github tarball
• If known which version of mpv introduced the problem: Not known.
• Window Manager and version: fluxbox 1.3.7
• GPU driver and version: Mobile 4 Series Chipset Integrated Graphics Controller, driver=i915

Reproduction steps

Expected behavior

A few seconds after video playback is paused, "grep RUNNING /proc/asound/card*/pcm*/sub*/status" should return no hits. This is the observed behavior when mpv is compiled without the "--disable-pulse" flag and run on a system that has PulseAudio.

Actual behavior

mpv compiled with "--disable-pulse" flag runs fine on an ALSA-only system, but when playback is paused, "grep RUNNING /proc/asound/card*/pcm*/sub*/status" consistently returns "/proc/asound/card0/pcm0p/sub0/status:state: RUNNING". Other sound-producing applications (e.g., Brave browser) exhibit the expected behavior when running on my ALSA-only system.

Log file

output.txt

Sample files

Any video or audio file will do.