[pulseaudio-tickets] [Bug 61181] Low volume levels just cut off

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61181

--- Comment #1 from Tanu Kaskinen <tanuk at iki.fi> ---
This most likely is a bug in alsa, not in pulseaudio. Alsa gives pulseaudio
information about the gain in decibels for each volume level in the alsa mixer.
In your case, the lowest level should be -infinity dB (i.e. muted), but
apparently alsa reports something else. This makes pulseaudio think that the
lowest level is does not mean mute, so it's ok to select it even when
pulseaudio volume is not 0%.

You can confirm this by checking what dB gain alsa reports when the mixer is
set to the lowest level. If you're using alsamixer to monitor/edit the alsa
volume levels, it shows the dB gain in the upper left corner.

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