No microphone - playback or recording [solved]

[eddiep]

SOLUTION:

ALL DIGITAL INPUT/OUTPUT CHANNELS HAD TO BE ENABLED AND SET TO A 50% VALUE EVEN IF I HAVE NO SUCH CHANNELS IN USE. TO HIGH VALUE RENDERS MICROPHON USELESS RESULTIN IN A SILENT BACKGROUND NOISE, TO LOW VALUES RELUST IN SILENCE.

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Mandriva 2009.0

KDE 4

 

I installed it on my HP Pavillion dv6000 laptop. Everything was fine, but suddenly the microphone stopped working.

 

Microfone tested - good.

sound playback - working

Sound recording - nothing. Perfect silence, or some noise.

 

With mandriva 2008 there were no problems.

 

What I tried:

- reset settings to default from MCC

- reset setting to default from KDE CC

- alsamixer in console, set everythign to max

- kmix ... play with different settings ... nothing

- lot of restarts between settings change

- disable pulseaudio

- try other microphone

 

I have perfect playback of music but no recording whatsoever. The internal mic is not working, the external mic is not working.

 

ADDITIONAL INFORMATION:

 

root@localhost csabi]# cat /proc/asound/card0/codec#* | grep Codec

Codec: Conexant CX20549 (Venice)

 

[root@localhost csabi]# lspcidrake -v | fgrep -i AUDIO

snd_hda_intel : Intel Corporation|82801G (ICH7 Family) High Definition Audio Controller (vendor:8086 device:27d8 subv:103c subd:30bb)

 

Any help would be appreciated, it is very important on this laptop to have proper sound. I use it frequently for voice confernces.

Edited October 14, 2008 by eddiep

[tyme]

did alsamixer and/or kmix have a section for recording volumes? there may also be a setting somewhere for +10db mic boost, which is necessary with most mic's. other than that, sounds like an odd problem if it was previously working.