Sound problems in PCCHIPS A13G+

[alsa-devel.20.pris@spamgourmet.com]

My motherboard: PCCHIPS A13G+
http://www.pcchips.com.tw/PCCWebSite...uID=44&LanID=0

I'm using Ubuntu 7.10 - the Gutsy Gibbon, I was using Feisty before
and had the same problems.

The interesting thing: the system sounds all work. Some example .ogg
files that came with Ubuntu also work.
There is one example file however "fables_01_01_aesop.spx" which only
gives a very low sound, almost inaudible.
The real strange thing happens with ".avi" and mp3 files. They sound
distorted and very low, almost inaudible. Some have better/louder
sound, but still distorted, but I can understand what is being spoken,
others not.

Thanks for any help!
If you need more information just ask.

Technical details follow(including the Alsa Audio Debug):



The sound hardware of my Mobo is in the NVIDIA MCP61S Single chipset.
This chipset consists of: GeForce(R) 6100 GPU and MCP nForce(R) 405

codec(less /proc/asound/card0/codec#0):
Codec: Realtek ALC660-VD
Address: 0
Vendor Id: 0x10ec0660
Subsystem Id: 0x1019c601
Revision Id: 0x100001


The aplay command lists another codec: ALC861VD

 aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC861VD Analog [ALC861VD Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

Here is the Alsa Audio Debug:

ALSA Audio Debug v0.1.0 - Mon Nov 12 00:00:12 BRST 2007
http://alsa.opensrc.org/aadebug
http://www.gnu.org/licenses/gpl.txt

Kernel ----------------------------------------------------
Linux 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux

Loaded Modules --------------------------------------------
snd_hda_intel         263712  4
snd_pcm_oss            44672  0
snd_mixer_oss          17664  1 snd_pcm_oss
snd_pcm                80388  3 snd_hda_intel,snd_pcm_oss
snd_seq_dummy           4740  0
snd_seq_oss            33152  0
snd_seq_midi            9600  0
snd_rawmidi            25728  1 snd_seq_midi
snd_seq_midi_event      8448  2 snd_seq_oss,snd_seq_midi
snd_seq                53232  6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              24324  3 snd_pcm,snd_seq
snd_seq_device          9228  5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd                    54660  15
snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
snd_page_alloc         11400  2 snd_hda_intel,snd_pcm

Modprobe Conf ---------------------------------------------
Warning: module config file does not exist
This means any kernel modules will not be auto loaded
See your linux distro docs on how to create this file

Proc Asound -----------------------------------------------
Advanced Linux Sound Architecture Driver Version 1.0.14 (Thu May 31
09:03:25 2007 UTC).
 0 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0xfe028000 irq 16
  2:        : timer
  3:        : sequencer
  4: [ 0- 0]: digital audio playback
  5: [ 0- 0]: digital audio capture
  6: [ 0]   : control
cat: /proc/asound/hwdep: No such file or directory
00-00: ALC861VD Analog : ALC861VD Analog : playback 1 : capture 2
Client info
  cur  clients : 3
  peak clients : 3
  max  clients : 192

Client   0 : "System" [Kernel]
  Port   0 : "Timer" (Rwe-)
  Port   1 : "Announce" (R-e-)
    Connecting To: 15:0
Client  14 : "Midi Through" [Kernel]
  Port   0 : "Midi Through Port-0" (RWe-)
Client  15 : "OSS sequencer" [Kernel]
  Port   0 : "Receiver" (-we-)
    Connected From: 0:1

Dev Snd ---------------------------------------------------
controlC0  pcmC0D0c  pcmC0D0p  seq  timer

CPU -------------------------------------------------------
model name	: AMD Processor model unknown
cpu MHz		: 1900.000

RAM -------------------------------------------------------
MemTotal:       969524 kB
SwapTotal:     1951888 kB

Hardware --------------------------------------------------
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Miscellaneous Control