FC4 - Sound Noise

[William Case]

Hi;

I had a similar problem was fixed when I muted / turned off IEC958. 

On Sat, 2005-08-06 at 16:23 -0400, fedora-list-request at redhat.com wrote:

> From: Andy Pieters <mailings at vlaamse-kern.com>
> Subject: Re: FC4 - Sound Noise
> To: For users of Fedora Core releases <fedora-list at redhat.com>
> Message-ID: <200508062023.34821.mailings at vlaamse-kern.com>
> Content-Type: text/plain; charset="iso-8859-1"

> 
> On Saturday 06 August 2005 05:26, Hoffmann wrote:
> > Hi All:
> >
> > My sound is working on FC4. However, I realized that
> > when I am playing a CD, I listen not only the music,
> > but also a "noise background". It seems like static
> > sound. My machine has the EM64T processor.
> > Could I hear from you?
> > Thanks!
> > Hoffmann
> >

IEC958 is the last column when using alsamixer.  I would use alsamixer
to mute IEC958 just to be sure. Gnome volume control may not have worked
for me.

I then added the following lines to my /etc/modprobe.conf:

install snd-ens1371 /sbin/modprobe --ignore-install snd-ens1371 &&
/usr/sbin/alsactl restore >/dev/null 2>&1 || : 

{all one line - don't split up}

remove snd-ens1371 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; };
/sbin/modprobe -r --ignore-remove snd-ens1371 

{all one line - don't split up}
 
> What do these lines do, as a matter of interest?
> 
> These lines cause the alsa driver state to be written to
> /etc/asound.state when the sound module is unloaded and to be read in
> from asound.state when the module is loaded.
> 
I added these lines to my modprobe.conf.  Runlevel 6 and 5 show my mixer
settings being saved and restored.  

I was having problems with changes that I had
made to my mixer getting changed back.  This seemed to fix it.  Someone
told me that FC4 didn't need the modprobe.conf lines, however I found
they made a difference. -- Bill

Regards Bill