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Well, I have this problem for a while now. When my computer start the mic seem to work but it's like it's muted. I have to go to a terminal and type alsamixer -c 1 and then I set up PCM Capture Source on Line and set up it back to Mic to get the mic actually working. Is there is a way to do this automatically or to solve the problem.

I use a special workaround on this card because of the bug #429642. My workaround is having this at the end of my /usr/share/pulseaudio/alsa-mixer/profile-sets/default.conf :

[Mapping xmod-stereo-out]
device-strings = surround51:%f
description = Analog Stereo Creative Xmod
channel-map = front-left,front-right
paths-output = analog-output analog-output-headphones analog-output-mono analog-output-lfe-on-mono
paths-input = analog-input analog-input-mic analog-input-linein analog-input-aux analog-input-video analog-input-tvtuner analog-input-fm analog-input-mic-line
priority = 10

Maybe the bug come from here, maybe I have to change something.

Thank you for any help.

share|improve this question
-c 1 ? Do you have more than one sound device? – maco Oct 11 '10 at 18:18
Yes, there is an internal audio chip "Realtek ALC889A" and the Creative X-Mod is an external (USB) audio card. – Nyamiou The Galeanthrope Oct 12 '10 at 3:58
please give us the output of lsusb in a terminal – hhlp Oct 18 '10 at 12:07
Bus 002 Device 003: ID 041e:30d0 Creative Technology, Ltd – Nyamiou The Galeanthrope Oct 20 '10 at 9:47
up vote 1 down vote accepted

To do this automatically, amixer should do the job. It's the command-line-tool for Alsa-Mixer.

share|improve this answer
Yes I found it myself yesterday but I award you the bounty anyway since your response is correct. I create a script with this two commands : amixer -c 1 sset "PCM Capture Source" "Line" and amixer -c 1 sset "PCM Capture Source" "Mic" that I launch at startup and it work well. – Nyamiou The Galeanthrope Oct 20 '10 at 9:44

If you have two sound devices, maybe Pulse is trying to use the mic from the first card (-c 0) not the second (-c 1 -- your Creative). Install and run pavucontrol and when you try to record, check which device it's trying to use. If the wrong one, change it.

share|improve this answer
I already use pavucontrol and I know how to configure the mic and it use the right one. The other one work correctly without problems but I want to use the mic on my Creative. – Nyamiou The Galeanthrope Oct 20 '10 at 15:02

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