Volume control problems

Lennart Poettering mzerqung at 0pointer.de
Wed Sep 12 22:19:24 UTC 2007

On Wed, 12.09.07 16:58, Mike Chambers (mike at miketc.com) wrote:

> On Wed, 2007-09-12 at 17:01 +0200, Lennart Poettering wrote:
> > Hmm. PulseAudio is unable to open your audio device. Are you sure it
> > is properly available in the system? Could you please run "pulsaudio
> > -vv"? And check whether "aplay -D hw:0 /dev/urandom" works?
> [mike at scrappy ~]$ pulseaudio -vv
> E: pid.c: daemon already running.
> E: main.c: pa_pid_file_create() failed.

Try "pulseaudio -k" first to shut down the running instance.

> [mike at scrappy ~]$ aplay -D hw:0 /dev/urandom
> ALSA lib pcm_hw.c:1351:(_snd_pcm_hw_open) Invalid value for card
> aplay: main:545: audio open error: No such device

Apparently there is no sound card detected at all.

Please check wheter anything is listed in /proc/asound/cards. Check if
you plugged everything in correctly. 

PulseAudio is not going to make your sound magically work if your
sound card is not recognized at all by the Linux kernel.


Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net         ICQ# 11060553
http://0pointer.net/lennart/           GnuPG 0x1A015CC4

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