[ALSA - driver 0001838]: Unknown model for ALC880 again, First International Computer p4m-915gd1 no sound

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1838> 
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Reported By:                graabein
Assigned To:                tiwai
======================================================================
Project:                    ALSA - driver
Issue ID:                   1838
Category:                   PCI - hda-intel
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     assigned
Distribution:               Fedora Core 4
Kernel Version:             2.6.15-1.1831_FC4smp
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Date Submitted:             02-10-2006 23:27 CET
Last Modified:              02-19-2006 05:55 CET
======================================================================
Summary:                    Unknown model for ALC880 again, First International
Computer p4m-915gd1 no sound
Description: 
I'm unable to get any sound on my FIC p4m-915gd1 motherboard's built-in
sound. There are no error messages and I can play content all I want, I
just don't get any sound.

The manufacturer's page lists the hardware as "Intel HDA, Azalia 8
Channel, Realtek ALC880":
http://www.fic.com.tw/product/motherboard/intel/p4m-915gd1.aspx

I've found other, similar reports here in the bug tracker (#1460, #1563,
#1589), including reports that this problem was resolved as of 1.0.11rc1.

Accordingly, I tried compiling alsa from cvs sources as of today, but this
made no difference. I still have no sound.

======================================================================

----------------------------------------------------------------------
 graabein - 02-19-06 05:47 
----------------------------------------------------------------------
OK, I'm fiddling around with patch_realtek.c here and making some progress,
I think. Does anyone have any documentation for this stuff?

I currently have sound from analog stereo out, but nothing at all from
S/PDIF.

Nothing very fancy, I just made sure the chip was recognized. See attached
patch. How do I go from here to getting a working S/PDIF?

PS, an oddity: There is no dmesg output from the driver when it loads
anymore. All I find in dmesg is this:

ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 16 (level, low) -> IRQ 185
PCI: Setting latency timer of device 0000:00:1b.0 to 64

It still loads successfully of course, as witnessed by lsmod and by my now
working analog audio.

----------------------------------------------------------------------
 rlrevell - 02-19-06 05:55 
----------------------------------------------------------------------
I believe the ALC880 data sheet is available on the web and the workings of
ALSA drivers are explained by the "writing an alsa driver" document

Issue History
Date Modified  Username       Field                    Change              
======================================================================
02-10-06 23:27 graabein       New Issue                                    
02-10-06 23:27 graabein       Distribution              => Fedora Core 4   
02-10-06 23:27 graabein       Kernel Version            => 2.6.15-1.1831_FC4smp
02-10-06 23:38 graabein       Note Added: 0008010                          
02-15-06 23:46 Eugene Seppel  Issue Monitored: Eugene Seppel                    
02-15-06 23:46 Eugene Seppel  Note Added: 0008081                          
02-16-06 17:08 Marijn SchoutenNote Added: 0008098                          
02-16-06 17:10 Marijn SchoutenNote Edited: 0008098                         
02-16-06 18:36 er-ku          Note Added: 0008101                          
02-16-06 23:06 graabein       Note Added: 0008103                          
02-17-06 10:47 Marijn SchoutenNote Added: 0008107                          
02-17-06 16:31 Eugene Seppel  Note Added: 0008108                          
02-19-06 02:03 graabein       Note Added: 0008127                          
02-19-06 05:47 graabein       Note Added: 0008128                          
02-19-06 05:50 graabein       File Added: ficpatch.diff                    
02-19-06 05:55 rlrevell       Note Added: 0008129                          
======================================================================




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