ALSA: No Sound/faint noise after upgrade

Question

Hi,
Sound volume is very very low, I am barely able to hear anything. even if I pump it up to full I hear faint noise. everything was working before, It just broke after recent kernel upgrade.
I checked alsamixer, nothing is muted. also I blacklisted PC speaker but still no sound
Kernel ----------------------------------------------------
Linux moody 2.6.30-ARCH #1 SMP PREEMPT Sat Jul 4 02:24:43 CEST 2009 x86_64 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux
Loaded Modules --------------------------------------------
snd_via82xx 28888 0
snd_ac97_codec 133592 1 snd_via82xx
snd_mpu401_uart 9264 1 snd_via82xx
snd_rawmidi 26560 1 snd_mpu401_uart
snd_seq_dummy 3540 0
snd_seq_oss 36224 0
snd_seq_midi_event 8592 1 snd_seq_oss
snd_seq 64640 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 8324 4 snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 47328 0
snd_pcm 90808 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer 25344 2 snd_seq,snd_pcm
snd_page_alloc 10752 2 snd_via82xx,snd_pcm
snd_mixer_oss 20976 1 snd_pcm_oss
snd 76712 11 snd_via82xx,snd_ac97_codec,snd_mpu401_uart,snd_rawmidi,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
Proc Config -----------------------------------------------
CONFIG_SOUND=m
CONFIG_SOUND_OSS_CORE=y
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_JACK=y
CONFIG_SND_SEQUENCER=m
CONFIG_SND_SEQ_DUMMY=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_PCM_OSS_PLUGINS=y
CONFIG_SND_SEQUENCER_OSS=y
CONFIG_SND_HRTIMER=m
CONFIG_SND_SEQ_HRTIMER_DEFAULT=y
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_VX_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_DRIVERS=y
# CONFIG_SND_PCSP is not set
CONFIG_SND_DUMMY=m
CONFIG_SND_VIRMIDI=m
CONFIG_SND_MTPAV=m
CONFIG_SND_MTS64=m
CONFIG_SND_SERIAL_U16550=m
CONFIG_SND_MPU401=m
CONFIG_SND_PORTMAN2X4=m
CONFIG_SND_AC97_POWER_SAVE=y
CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
CONFIG_SND_SB_COMMON=m
CONFIG_SND_SB16_DSP=m
CONFIG_SND_PCI=y
CONFIG_SND_AD1889=m
CONFIG_SND_ALS300=m
CONFIG_SND_ALS4000=m
CONFIG_SND_ALI5451=m
CONFIG_SND_ATIIXP=m
CONFIG_SND_ATIIXP_MODEM=m
CONFIG_SND_AU8810=m
CONFIG_SND_AU8820=m
CONFIG_SND_AU8830=m
CONFIG_SND_AW2=m
CONFIG_SND_AZT3328=m
CONFIG_SND_BT87X=m
# CONFIG_SND_BT87X_OVERCLOCK is not set
CONFIG_SND_CA0106=m
CONFIG_SND_CMIPCI=m
CONFIG_SND_OXYGEN_LIB=m
CONFIG_SND_OXYGEN=m
CONFIG_SND_CS4281=m
CONFIG_SND_CS46XX=m
CONFIG_SND_CS46XX_NEW_DSP=y
CONFIG_SND_CS5530=m
CONFIG_SND_DARLA20=m
CONFIG_SND_GINA20=m
CONFIG_SND_LAYLA20=m
CONFIG_SND_DARLA24=m
CONFIG_SND_GINA24=m
CONFIG_SND_LAYLA24=m
CONFIG_SND_MONA=m
CONFIG_SND_MIA=m
CONFIG_SND_ECHO3G=m
CONFIG_SND_INDIGO=m
CONFIG_SND_INDIGOIO=m
CONFIG_SND_INDIGODJ=m
CONFIG_SND_INDIGOIOX=m
CONFIG_SND_INDIGODJX=m
CONFIG_SND_EMU10K1=m
CONFIG_SND_EMU10K1X=m
CONFIG_SND_ENS1370=m
CONFIG_SND_ENS1371=m
CONFIG_SND_ES1938=m
CONFIG_SND_ES1968=m
CONFIG_SND_FM801=m
CONFIG_SND_FM801_TEA575X_BOOL=y
CONFIG_SND_FM801_TEA575X=m
CONFIG_SND_HDA_INTEL=m
CONFIG_SND_HDA_HWDEP=y
CONFIG_SND_HDA_RECONFIG=y
CONFIG_SND_HDA_INPUT_BEEP=y
CONFIG_SND_HDA_CODEC_REALTEK=y
CONFIG_SND_HDA_CODEC_ANALOG=y
CONFIG_SND_HDA_CODEC_SIGMATEL=y
CONFIG_SND_HDA_CODEC_VIA=y
CONFIG_SND_HDA_CODEC_ATIHDMI=y
CONFIG_SND_HDA_CODEC_NVHDMI=y
CONFIG_SND_HDA_CODEC_INTELHDMI=y
CONFIG_SND_HDA_ELD=y
CONFIG_SND_HDA_CODEC_CONEXANT=y
CONFIG_SND_HDA_CODEC_CMEDIA=y
CONFIG_SND_HDA_CODEC_SI3054=y
CONFIG_SND_HDA_GENERIC=y
CONFIG_SND_HDA_POWER_SAVE=y
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=0
CONFIG_SND_HDSP=m
CONFIG_SND_HDSPM=m
CONFIG_SND_HIFIER=m
CONFIG_SND_ICE1712=m
CONFIG_SND_ICE1724=m
CONFIG_SND_INTEL8X0=m
CONFIG_SND_INTEL8X0M=m
CONFIG_SND_KORG1212=m
CONFIG_SND_MAESTRO3=m
CONFIG_SND_MIXART=m
CONFIG_SND_NM256=m
CONFIG_SND_PCXHR=m
CONFIG_SND_RIPTIDE=m
CONFIG_SND_RME32=m
CONFIG_SND_RME96=m
CONFIG_SND_RME9652=m
CONFIG_SND_SONICVIBES=m
CONFIG_SND_TRIDENT=m
CONFIG_SND_VIA82XX=m
CONFIG_SND_VIA82XX_MODEM=m
CONFIG_SND_VIRTUOSO=m
CONFIG_SND_VX222=m
CONFIG_SND_YMFPCI=m
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
CONFIG_SND_USB_AUDIO=m
CONFIG_SND_USB_USX2Y=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_CAIAQ_INPUT=y
CONFIG_SND_USB_US122L=m
CONFIG_SND_PCMCIA=y
CONFIG_SND_VXPOCKET=m
CONFIG_SND_PDAUDIOCF=m
CONFIG_SND_SOC=m
CONFIG_SND_SOC_I2C_AND_SPI=m
# CONFIG_SND_SOC_ALL_CODECS is not set
# CONFIG_SOUND_PRIME is not set
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 1.0.20.
0 [V8237 ]: VIA8237 - VIA 8237
VIA 8237 with VIA1617A at 0xeb00, irq 22
2: : timer
3: : sequencer
4: [ 0- 1]: digital audio playback
5: [ 0- 1]: digital audio capture
6: [ 0- 0]: digital audio playback
7: [ 0- 0]: digital audio capture
8: [ 0] : control
cat: /proc/asound/hwdep: No such file or directory
00-00: VIA 8237 : VIA 8237 : playback 4 : capture 1
00-01: VIA 8237 : VIA 8237 : playback 1 : capture 1
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 pcmC0D1c pcmC0D1p seq timer
CPU -------------------------------------------------------
model name : AMD Athlon(tm) 64 Processor 3000+
cpu MHz : 1999.601
RAM -------------------------------------------------------
MemTotal: 1026132 kB
SwapTotal: 1574360 kB
Hardware --------------------------------------------------
00:00.0 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. K8M800 Host Bridge
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
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
Please help

Answer 1

Okay, I fixed my issue.
I had to run this script
for i in $(seq 0 3);
do amixer -Dhw:0 set 'VIA DXS',$i 80%;
done
The output was:
bash-4.0$ ./alsa-fix.sh
Simple mixer control 'VIA DXS',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [-9.00dB]
Front Right: Playback 25 [81%] [-9.00dB]
Simple mixer control 'VIA DXS',1
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [-9.00dB]
Front Right: Playback 25 [81%] [-9.00dB]
Simple mixer control 'VIA DXS',2
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [-9.00dB]
Front Right: Playback 25 [81%] [-9.00dB]
Simple mixer control 'VIA DXS',3
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [-9.00dB]
Front Right: Playback 25 [81%] [-9.00dB]
Hope it helps others