[MPlayer-dev-eng] [PATCH 1/2] mixer: do not unmute to volume 0, instead unmute to max.

[Reimar Döffinger]

On 08.04.2014, at 11:52, Andy Furniss <adf.lists at gmail.com> wrote:
> Andy Furniss wrote:
>> Reimar Döffinger wrote:
>>> On 08.04.2014, at 02:31, Hans-Dieter Kosch <hdkosch at kabelbw.de>
>>> wrote:
> 
>>>> Unmute to only 10 or 50 or so, in order to not unexpectedly load
>>>> the speakers (and the audience's ears) with full power?
>>> 
>>> That completely breaks the intended purpose of working with devices
>>> that only have a mute toggle...
>> 
>> That's a shame, not that I use mute amy-way, but my card has a proper
>> headphone amp and goes really loud as do my headphones.
>> 
>> Using line out to my old stereo system, where the amp is too big for the
>> speakers, which themselves are quite big/loud would certainly be an
>> issue. were I say to mute with mixer on 50% and have it unmute to 100.
> 
> Having just tested "m" my setup doesn't unmute to 0 anyway, it comes back at what it was.
> 
> I am not using softvol, just alsa  -mixer-channel Master.

The issue you are thinking of would happen if you first reduce the volume to 0, then mute and then unmute.
The same if the mixer volume is 0 at startup, and you then mute and unmute.
I do not feel completely comfortable with it due to the reasons you mention, on the other hand it's not something that should happen frequently.