Re: ALSA: no sound, no error!
On Thu, Jun 23, 2005 at 01:38:25PM -0400, [KS] wrote:
> Peter J Ross wrote:
> > On Thu, Jun 23, 2005 at 12:21:09PM -0400, [KS] wrote:
> >
> >
> >>Hi,
> >>
> >>My system is an unstable Debian box and was running sound (with ALSA)
> >>under KDE(and sometimes GNOME) without any problem till a few weeks ago.
> >>But now I get no sound what soever. There is no sound if I do $cat
> >>/dev/urandom > /dev/dsp Also, when I try to play audio (audio CD or
> >>mp3s) with XMMS everything seems to be running fine but there is no
> >>sound! XMMS, xine, or other multimedia applications do not complain
> >>about anything regarding sound system.
> >>
> >>Could someone help or give tips on how to go about debugging the sound
> >>problem?
> >>
> >>Below are some details about the system:
> >>arts is set to release the sound device after 2 seconds, and it looks
> >>that its working. Testing sound from the Control Center>Sound and
> >>Multimedia doesn't give any error either.
> >>
> >>~$ lspci | grep Multimedia
> >>0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801DB/DBL/DBM
> >>(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
> >>
> >>~$ lsmod | grep snd
> >>snd_intel8x0 33216 0
> >>snd_ac97_codec 78360 1 snd_intel8x0
> >>snd_pcm_oss 53344 0
> >>snd_mixer_oss 19872 1 snd_pcm_oss
> >>snd_pcm 92712 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
> >>snd_timer 24644 1 snd_pcm
> >>snd 55300 6
> >>snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
> >>soundcore 9664 1 snd
> >>snd_page_alloc 10020 2 snd_intel8x0,snd_pcm
> >>
> >>~$ cat /proc/asound/cards
> >>0 [I82801DBICH4 ]: ICH4 - Intel 82801DB-ICH4
> >> Intel 82801DB-ICH4 with AD1981A at 0xfebff800, irq 201
> >
> >
> > That looks good to me.
> >
> > Obvious question first.
> >
> > Have you used alsamixer (or a GUI equivalent) to unmute the output?
> >
>
> Yes, I did check the settings in alsamixer before posting. Master,
> Master Mono, Headphone, PCM, Line,CD, Mic, Phone, Aux are all 100% and
> unmuted. Heaphone Jack Sense, Line Jack Sense, Mic Boost, External Amp
> are all 0 and I can't increase their volume or mute them.
Here's the next really obvious question:
Are the speakers plugged in to the right socket, switched on, and not
muted by their own volume control?
Sorry for asking, but I'm at a loss to account for your problem when
everything seems right.
--
PJR :-)
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