Bug#801428: pulseaudio: on stock workstation with normal left/right speakers, bass is stripped, unless using headphones jack

[Felipe Sateler]

On 10 October 2015 at 12:14, Stephen Dowdy <sdowdy at ucar.edu> wrote:
>
> On Sat, Oct 10, 2015 at 6:42 AM, Felipe Sateler <fsateler at debian.org> wrote:
>>
>> I don't understand. Do you mean that if you plug into headphone jack
>> you do not have this problem? And that the problem only reveals itself
>> after plugging the speakers into the line-out jack and selecting Line
>> Out / Speakers / Analog Output port[1]?
>>
>> [1] This being worse because one of these is selected by default?
>
>
> Felipe,
>
> I have not tried headphones themselves, but if i plug the external speakers
> into the headphone jack on the workstation, the problem disappears.  Also,
> if i select the headphone "port" in software (pavucontrol) while the
> external speakers are still plugged into the line-out jack (either front or
> back jack of my system, a Dell Precision Workstation, the problem goes away,
> as well.

OK

>
> If i move the external speakers from the headphone jack back to the line-out
> jack, the automatic jack selection code reverts to the "No Bass" situation.
> (but, again, i can manually "fix" it, by selecting the headphone port in
> pavucontrol.  I'd *expect* that to route the sound through the headphone
> jack, and i should hear *nothing* at that point, but that's not the case).

Yes, that's what I'd expect too.  I have uploaded a backport of
pulseaudio 7 (that has changed the mappings a bit, so this may be
fixed). Unfortunately it has not been accepted yet, but you could
install manually from here:

http://debomatic-amd64.debian.net/distribution#jessie-backports/pulseaudio/7.0-1~bpo8+1

Please report if the problem also occurs there.

-- 

Saludos,
Felipe Sateler