Bug#831355: pulseaudio: Use module-udev-detect instead of module-detect

[Sean Laguna]

 On Fri, 15 Jul 2016 10:08:52 -0400 Felipe Sateler <fsateler at debian.org>
wrote:
> On 15 July 2016 at 03:51, Francois Mescam <francois at mescam.org> wrote:
> > Thanks after installing pulseaudio-module-udev the message disappear.
> >
> > I have not disbled installation of Recommends but I install them
manually
> > and I think I've miss to install this package.
> >
> > You can close the bug.
>
> OK, doing so.
>
> --
>
> Saludos,
> Felipe Sateler

I think a problem here is that Debian recently removed this module from the
base pulseaudio package:
http://lists.alioth.debian.org/pipermail/pkg-pulseaudio-devel/2016-April/006197.html.
Like the OP, I had to manually install it to get my default behavior back.
It is a bit misleading because in the pulseaudio configuration file, we
have the following:

### Automatically load driver modules depending on the hardware available
.ifexists module-udev-detect.so
load-module module-udev-detect
.else
### Use the static hardware detection module (for systems that lack udev
support)
load-module module-detect
.endif

So... the default config will load this if present, but not having
pulseaudio-module-udev installed does not really trigger an error or
warning (other than what OP showed). The reason I noticed is because while
previously I had separate volume controls for headphones and speakers, I
started having just one volume for both. Of course this is bad because I'm
used to my volume becoming much lower when I plug my headphones in! I then
looked and realized that the udev module was not being loaded, and managed
to figure out the above info.

I am not sure what to do to fix this problem, but I can't imagine that very
many people want pulseaudio without the udev module. Maybe putting a notice
for the next pulseaudio upgrade would be nice, so people can know to
install it if they myseriously lost this functionality.

Sean
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