Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #176533

Re: Mute mutes speaker, but Unmute does not unmute speaker channel (XFCE4)

Show all headers | View raw

Perhaps you've heard of the freedesktop project?  The only thing that's 
above alsa is pulseaudio.  I had a situation with pulseaudio and 
alsamixer recently I got resolved through some hacking it may be 
instructive to describe here.  I had moved my computer from one room to 
another and for whatever reason the speaker output arbitrarily got moved 
back to the 3.5MM jack rather than a usb port and the usb port had my 
best speakers playing on it.  Adjusting pulseaudio did nothing to 
correct the speaker output.  I had to adjust alsamixer and pulseaudio to 
fix the issue.

On Tue, 10 Jan 2017, Stefan Monnier wrote:

> Date: Tue, 10 Jan 2017 00:55:40
> From: Stefan Monnier <monnier@iro.umontreal.ca>
> To: debian-user@lists.debian.org
> Subject: Re: Mute mutes speaker,
>     but Unmute does not unmute speaker channel (XFCE4)
> Resent-Date: Tue, 10 Jan 2017 05:56:09 +0000 (UTC)
> Resent-From: debian-user@lists.debian.org
> 
>> Once a speaker is unmuted it may help to check the volume levels on all
>> sound devices.  I suspect when mute speaker is done, all volume levels also
>> get set to 0, and sink for that speaker has its default value erased.
>
> You mean, we can/should use alsamixer and friends to fix the mess by hand?
> Yes, that's what I do, but I'd really like to better understand who
> makes this mess, why, and how I can tell it to stop doing that.
>
> I.e. when I press that mute/unmute button, what is the path followed by
> this event through the various layers of event handling, and along this
> path, where (in which tool) is it decided which channel to mute or to
> unmute (or to change the volume level), based on what configuration
> data, and which tool does actually perform this action (in case it's
> not the same as the tool which made the decision)?  I suspect there
> might also be several tools making and applying those decisions and that
> might be part of the problem (at least that has been the case for the
> LCD brightness management which has historically been handled at all
> kinds of places with various successes at avoiding conflicts between
> them).
>
>
>        Stefan
>
>
>> On Mon, 9 Jan 2017, Stefan Monnier wrote:
>
>>> Date: Mon, 9 Jan 2017 22:42:39
>>> From: Stefan Monnier <monnier@iro.umontreal.ca>
>>> To: debian-user@lists.debian.org
>>> Subject: Re: Mute mutes speaker,
>>> but Unmute does not unmute speaker channel (XFCE4)
>>> Resent-Date: Tue, 10 Jan 2017 03:43:32 +0000 (UTC)
>>> Resent-From: debian-user@lists.debian.org
>>>
>>>> But somehow would like to fix the unmute, not unmuting speaker channel
>>>> and don't know where to look.
>>>
>>> If/when you do find out, please report here: I've had similar problems
>>> on my laptops but could never figure out how those things are expected
>>> to work nor how to change their behavior.
>>>
>>>
>>> Stefan
>>>
>>>
>
>
>

-- 

Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Mute mutes speaker, but Unmute does not unmute speaker channel (XFCE4) Paul Dufresne <dufresnep@gmail.com> - 2017-01-10 04:00 +0100
  Re: Mute mutes speaker, but Unmute does not unmute speaker channel (XFCE4) Stefan Monnier <monnier@iro.umontreal.ca> - 2017-01-10 04:50 +0100
    Re: Mute mutes speaker, but Unmute does not unmute speaker channel  (XFCE4) Jude DaShiell <jdashiel@panix.com> - 2017-01-10 06:50 +0100
      Re: Mute mutes speaker, but Unmute does not unmute speaker channel (XFCE4) Stefan Monnier <monnier@iro.umontreal.ca> - 2017-01-10 07:00 +0100
        Re: Mute mutes speaker, but Unmute does not unmute speaker channel  (XFCE4) Jude DaShiell <jdashiel@panix.com> - 2017-01-10 07:50 +0100
          Re: Mute mutes speaker, but Unmute does not unmute speaker channel (XFCE4) Paul Dufresne <dufresnep@gmail.com> - 2017-01-10 12:40 +0100
            Re: Mute mutes speaker, but Unmute does not unmute speaker channel (XFCE4) Paul Dufresne <dufresnep@gmail.com> - 2017-01-10 13:10 +0100

csiph-web