[ALSA - driver 0001346]: Nforce3-250 has no working support for front microphone

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
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<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1346> 
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Reported By:                alchemyx
Assigned To:                
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Project:                    ALSA - driver
Issue ID:                   1346
Category:                   PCI - intel8x0
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Distribution:               Gentoo
Kernel Version:             2.6.12
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Date Submitted:             08-17-2005 11:04 CEST
Last Modified:              08-19-2005 12:41 CEST
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Summary:                    Nforce3-250 has no working support for front
microphone
Description: 
I have nforce3-250 based motherboard. It uses i8x0 drivers for its sound
chip, my output from lspci:

0000:00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb
AC'97 Audio Controller (rev a1)
        Subsystem: Giga-byte Technology: Unknown device a002
        Flags: bus master, 66Mhz, fast devsel, latency 0, IRQ 21
        I/O ports at e000
        I/O ports at e400 [size=128]
        Memory at fa002000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [44] Power Management version 2

That soundcard is supported quite well. Playing and also recording sounds
just fine. Only problem is that I have front audio panel built in my case,
where I can connect microphone and headphones. Headphones work fine, but I
can't get recording from microphone connected to front panel.

Tweaking with mixer didn't help. Only solution was to use binary nvsound
from nvidia drivers which is, to be honest, poor quality. Also it works
fine under Windows.

So it seems that there is something missing or wrong in current i8x0
driver.
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----------------------------------------------------------------------
 alchemyx - 08-18-05 23:01 
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You are completly right. I can hear myself, but I need to turn up the
volume to the max and almost scream to the mic! :)

----------------------------------------------------------------------
 vsu - 08-19-05 12:41 
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If your motherboard has the Realtek ALC850 codec, you need to upgrade ALSA
drivers to 1.0.9 (or later) release - see bug #1232 for details.  The
codec type is shown by alsamixer and in
/proc/asound/card0/codec97#0/ac97#0-0.

If your motherboard has some other codec, please upload
/proc/asound/card0/codec97#0/* files and /etc/asound.state file, like the
reporter of #1232 did.

Issue History
Date Modified  Username       Field                    Change              
======================================================================
08-17-05 11:04 alchemyx       New Issue                                    
08-17-05 11:04 alchemyx       Distribution              => Gentoo          
08-17-05 11:04 alchemyx       Kernel Version            => 2.6.12          
08-18-05 18:43 jirka          Note Added: 0005851                          
08-18-05 23:01 alchemyx       Note Added: 0005859                          
08-18-05 23:04 alchemyx       Issue Monitored: alchemyx                    
08-19-05 12:41 vsu            Note Added: 0005868                          
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