A sound problem one more time.- THE SOLUTION AT LAST (PLEASE NOTE)

Nigel Henry cave.dnb2m97pp at aliceadsl.fr
Wed Feb 13 18:09:31 UTC 2008

On Wednesday 13 February 2008 15:58, Aaron Konstam wrote:
> On Tue, 2008-02-12 at 21:07 -0800, Frank Chiulli wrote:
> > On Feb 12, 2008 1:17 PM, Aaron Konstam <akonstam at sbcglobal.net> wrote:
> > > I got no answer to my question about sound in f8 working only as root,
> > > so let me ask the question a different way.
> > >
> > > This could only happen if some vital component in processing sound has
> > > the wrong permissions. Could any one suggest what that component could
> > > be? This is very frustrating.
> > > --
> > > =======================================================================
> > > To the systems programmer, users and applications serve only to provide
> > > a test load.
> > > =======================================================================
> > > Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam at sbcglobal.net
> > >
> > > --
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> >
> > Aaron,
> > I had the same problem.  But I was also getting a startup message
> > about a syntax error in /etc/security/console.perms.d/50-default.perms
> > on line 19 at 0600.  The error was a right paren instead of a greater
> > than: <sound)  <sound>
> >
> > Once I corrected that sound worked just fine.
> >
> > Frankt
> Your a genius. Or at least you had the critical piece of information.
> My /etc/security/console.perms.d/50-default.perms had no sound clauses
> at all. It had no cdrom clauses either. Once that correction was made
> sound works. I will have to remember to check that in the future.
> But how could that have happened. I assume it was related to the system
> not recognizing the sound card.

Hi Aaron. I'm glad you have the problem resolved. I'd had a look in my 
F8's /etc/security/console.perms.d/50-default.perms, after seeing Franks 
post, and it's as below.

# device classes -- these are shell-style globs
<scanner>=/dev/scanner* /dev/usb/scanner*
<fb>=/dev/fb /dev/fb[0-9]* \
<dri>=/dev/nvidia* /dev/3dfx* /dev/dri/card*

# permission definitions
<console>  0600 <pilot>      0660 root.uucp
<console>  0660 <scanner>    0660 root.lp
<console>  0600 <fb>         0600 root
<console>  0600 <kbd>        0600 root
<console>  0600 <joystick>   0600 root
<console>  0700 <gpm>      0700 root
<console>  0600 <mainboard>  0600 root
<console>  0600 <rio500>     0600 root
<console>  0600 <pmu>        0600 root
<console>  0600 <bluetooth>  0600 root
<console>  0600 <irda>       0600 root
<console>  0600 <dvb>        0600 root

<xconsole> 0600 /dev/console 0600 root.root
<console>  0600 <dri>      0600 root

As you can see there are no sound, or cdrom clauses, and the fresh install of 
F8 picked up the soundcard (audigy2 soundblaster) ok. Apart from disabling 
the infamous pulseaudio, the only other thing necessary was to add alias, and 
options lines for snd-usb-audio in /etc/modprobe.conf, so that my usb midi 
keyboard didn't end up in the card0 position.

It would be nice to know which soundcard Frank Chiulli has on his machine, 
that gave a similar problem to you, and if the soundcard was picked up 
automatically when he did the install, or whether he had to run 
system-config-soundcard to configure the card, and only after doing that, 
discovered the badline in /etc/security/console.perms.d/50-default.perms.

Aaron. Do you still have to add a "modprobe snd-cs4236" line in /etc/rc.local 
in F8, as you had to do since FC6, as per your earlier post?

I wonder if this is a kernel, or Alsa related problem, as you said it wasn't 
limited to Fedora 6 onwards, but also on Ubuntu 6.06, 7.2, and 7.10, 
therefore the problem with snd-cs4236 does not, on the face of it appear to 
be distro specific. By the way, and IIRC, I thought I read somewhere that 
support for isa soundcards was not as it used to be.

Would you download this script, as below, run it, and post the link to 
pastebin back. It may well provide some usefull info about your machine, 
soundcard, etc.


It may be usefull to the Alsa development folks, and I'll post the pastebin 
link there, with all the relevant details regarding your isa soundcard, and 
what is necessary to get it to work.

Nice to have the sounds working again eh!

All the best.


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