Re: ALSA: no sound, no error!
Peter J Ross wrote:
> On Thu, Jun 23, 2005 at 12:21:09PM -0400, [KS] wrote:
>>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 $cat
>>/dev/urandom > /dev/dsp Also, when I try to play audio (audio CD or
>>mp3s) with XMMS everything seems to be running fine but there is no
>>sound! XMMS, xine, or other multimedia applications do not complain
>>about anything regarding sound system.
>>Could someone help or give tips on how to go about debugging the sound
>>Below are some details about the system:
>>arts is set to release the sound device after 2 seconds, and it looks
>>that its working. Testing sound from the Control Center>Sound and
>>Multimedia doesn't give any error either.
>>~$ 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
>>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.