[pulseaudio-discuss] Sound works, still returns error "alsa-util.c: Error opening PCM device"

[Saeed Abbassi]

Dear Lennart,
Thanks for the reply,


PA version
pulseaudio-0.9.10
alsa-plugins-pulseaudio-1.0.16

How do I know PulseAudio is running properly in the time of running the Java
Application?

How can I know abou it (How can I fix it?)

> This looks like borkage with ConsoleKit which would normally add the
> user that is active on the current console to the ACL of all devices.
>

Thanks again,
Saeedora



On Sun, May 10, 2009 at 3:17 AM, Lennart Poettering
<lennart at poettering.net>wrote:

> On Tue, 05.05.09 19:51, Saeed Abbassi (saeed144 at gmail.com) wrote:
>
> > Dear List members,
> >
> > I have 2.6.25-14.fc9.i686; gnome.
>
> Which version of PA?
>
> Why are you using F9? F10 has been out for quite some time.
>
> > aplay plays well, I hear through headphone.
> > When I run a Java applicaiton which uses sound system, it says
> > *** PULSEAUDIO: Unable to connect: Connection refused
>
> That means PA is not reachable, usually because it is not running.
>
> > grep pulseaudio /var/log/messages
> > Apr 30 12:38:50 system pulseaudio[2551]: sink-input.c: Failed to create
> sink
> > input: too many inputs per sink.
>
> Some (presumably broken) application seems to create a lot of streams
> to PulseAudio. PA will eventually refuse any further connections for
> security reasons.
>
> > *pulseaudio[2551]: module-alsa-sink.c: Error opening PCM device front:0:
> > Device or resource busy*
>
> Some other application seems to have blocked access to the audio
> device to the effect that PA cannot use it anymore.
>
> > [user1 at system modprobe.d]$ getfacl /dev/snd/*
> > all the same
> > # file: dev/snd/controlC0
> > # owner: root
> > # group: root
> > user::rw-
> > group::rw-
> > mask::rw-
> > other::---
>
> This looks like borkage with ConsoleKit which would normally add the
> user that is active on the current console to the ACL of all devices.
>
> >
> > pulseaudio -vvv
> > W: main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not
> permitted
> > W: main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not
> permitted
> >
> > E: alsa-util.c: Error opening PCM device hw:0: No such file or
> > directory
>
> ALSA is not particularly thruthful about error codes. This might
> actually be a permission error, although on the first glance it does
> not seem so.
>
> Lennart
>
> --
> Lennart Poettering                        Red Hat, Inc.
> lennart [at] poettering [dot] net
> http://0pointer.net/lennart/           GnuPG 0x1A015CC4
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>
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