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Old 08-27-2008, 01:21 PM   #1
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Registered: Aug 2008
Location: London
Distribution: Ubuntu
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Conexant HD audio not producing any sound on Ubuntu

This is my first post ever. I am running Hardy Heron on an Intel core2duo machine and Ubuntu will not produce any sound (everything else works fantastically well).

I have a Toshiba laptop (Satellite P100-403). The audio card is a Conexant HD audio and it does not produce any sound at all. I read several posts about this specific problem, which seems to be well known, but nothing I read, including reinstalling Alsa drivers, seems to work for me.

The sound is working fine with Windows XP, and I checked the mixer is not muted. Here are some data :

1. lspci output (selected line)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)

2. Kernel version

3. aplay -l output
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: Conexant Digital [Conexant Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0

4. grep Codec /proc/asound/card0/codec#* output
Codec: Conexant CX20551 (Waikiki)

Any help will be appreciated.

Arnault, ''
Old 08-27-2008, 03:29 PM   #2
Registered: Nov 2007
Location: Vinsobres - Drome - France
Distribution: SuSE Linux 11.3
Posts: 152

Rep: Reputation: 19
I remember, I had a similar problem with a soundblaster awe 32, try many configurations under kmix.

My card was recognized but a flag forbade any output, sorry but I don't remember the flag name.


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