How can turn on auto-mute mode in alsa ?

[GitHub issues - opened]

alsa-project/alsa-lib issue #164 was opened from yufeiluo:

My alsa-utils version:

[code]

    aplay --version
    aplay: version 1.1.8 by Jaroslav Kysela <perex at perex.cz>

[/code]

No auto-mute option in alsamixer gui menu.
[https://www.dropbox.com/s/ie6meqto1t1rv9g/alsamixer.png?dl=0](url)

[code]
    debian at debian:~$ amixer -c 0 sset 'Auto-Mute Mode' Enabled
    amixer: Unable to find simple control 'Auto-Mute Mode',0
[/code]

Issue URL     : https://github.com/alsa-project/alsa-lib/issues/164
Repository URL: https://github.com/alsa-project/alsa-lib