Re: How to use sound as non-logged-in user

On Mon, Apr 21, 2008 at 09:29:38AM +0200, Zavodsky, Daniel
(GE Money) wrote:

> Have a look at
/etc/security/console.perms.d/50-default.perms - you have
> to change this, I believe RHEL uses pam_console..

Hmm... this *did* work, but now I get:

  ALSA lib pcm_dmix.c:831:(snd_pcm_dmix_open) unable to
create IPC semaphore
  sox: Failed writing default: cannot open audio device

Not sure when this started to happen.  I also use
hibernate/resume on
my laptop, maybe it is related to this.

Any suggestions?

-- 
--    Jos Vos <josxos.nl>
--    X/OS Experts in Open Systems BV   |   Phone: +31 20
6938364
--    Amsterdam, The Netherlands        |     Fax: +31 20
6948204

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>From what I know, alsa needs to be stopped and the
modules unloaded
prior to hibernation... Are you doing this (or the
hibernation scripts -
I don't know how this is handled in RHEL)?

Regards,
	Daniel
 

-----Original Message-----
From: rhelv5-list-bouncesredhat.com
[mailto:rhelv5-list-bouncesredhat.com] On Behalf Of
Jos Vos
Sent: Wednesday, April 23, 2008 1:33 PM
To: Red Hat Enterprise Linux 5 (Tikanga) discussion
mailing-list
Subject: Re: [rhelv5-list] How to use sound as non-logged-in
user

On Mon, Apr 21, 2008 at 09:29:38AM +0200, Zavodsky, Daniel
(GE Money)
wrote:

> Have a look at
/etc/security/console.perms.d/50-default.perms - you 
> have to change this, I believe RHEL uses pam_console..

Hmm... this *did* work, but now I get:

  ALSA lib pcm_dmix.c:831:(snd_pcm_dmix_open) unable to
create IPC
semaphore
  sox: Failed writing default: cannot open audio device

Not sure when this started to happen.  I also use
hibernate/resume on my
laptop, maybe it is related to this.

Any suggestions?

-- 
--    Jos Vos <josxos.nl>
--    X/OS Experts in Open Systems BV   |   Phone: +31 20
6938364
--    Amsterdam, The Netherlands        |     Fax: +31 20
6948204

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ttps://www.redhat.com/mailman/listinfo/rhelv5-list



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Jos Vos wrote:

>   ALSA lib pcm_dmix.c:831:(snd_pcm_dmix_open) unable to
create IPC semaphore
>   sox: Failed writing default: cannot open audio
device

> Any suggestions?

No, but I feel your pain, having just wrestled with this
recently. 
Could play an ogg file on startup, but after recording a
file with 
krec, all players failed to open the audio device for
playback of any 
sound file, even with full duplex enabled, or if krec was
stopped. 
Some kind of locking?  Guess you get just one shot at using
the 
soundcard anymore.  Couldn't find an answer in googleland
either...

-Ed


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