No sound/audio using Intel 82801DB

[poly-morphic]

Running CorePlus 4.7.7 on a Pentium M laptop with 1.5 GB of memory.  Successfully frugal installed and then added alsa & alsamixergui.  Everything works so far _except_ sound.  I know the sound subsystem is functional because I get sound on the internal speaker when I boot Ubuntu.

"alsamixergui" identifies the card as Intel 82801DB-ICH4 and the chip as AD1961B.  "aplay -l" gives:

   **** List of PLAYBACK Hardware Devices ****
   card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 82801DB-ICH4]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 [Intel 82801DB-ICH4 - IEC958]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   card 1: Modem [Intel 82801DB-ICH4 Modem], device 0: Intel ICH - Modem [Intel 82801DB-ICH4 Modem - Modem]
     Subdevices: 1/1
     Subdevice #0: subdevice #0

"lsmod | grep snd" gives:

   snd_intel8x0           20480  0
   snd_intel8x0m          16384  0
   snd_ac97_codec         73728  2 snd_intel8x0,snd_intel8x0m
   ac97_bus               12288  1 snd_ac97_codec
   snd_pcm                45056  3 snd_intel8x0,snd_intel8x0m,snd_ac97_codec
   snd_timer              20480  1 snd_pcm
   snd                    32768  5 snd_intel8x0,snd_intel8x0m,snd_ac97_codec,snd_pcm,snd_timer
   soundcore              12288  1 snd
   snd_page_alloc         12288  3 snd_intel8x0,snd_intel8x0m,snd_pcm

Using alsamixer in Terminal, I unmuted everything and maximized all gains.

"speaker-test -l sine" runs but gives no sound:

   speaker-test 1.0.24.2
   Playback device is default
   Stream parameters are 48000Hz, S16_LE, 1 channels
   Sine wave rate is 440.0000Hz
   Rate set to 48000Hz (requested 48000Hz)
   Buffer size range from 2048 to 8192
   Period size range from 1024 to 1024
   Using max buffer size 8192
   Periods = 4
   was set period_size = 1024
   was set buffer_size = 8192
    0 - Front Left
   Time per period = 2.838902
    0 - Front Left
   Time per period = 2.986650
    ...

Suggestions?

[tinypoodle]

Have you checked hardware controls?

[poly-morphic]

The laptop does have a "mute" button and LED status indicator, but the button has no effect and the LED goes off when I unmute the master volume in alsamixer.  My best guess is that there is not a HW mute on top of what ever is blocking in the  SW.

[poly-morphic]

I finally gave up on alsa and went to oss.  Worked the first time with no configuration except turning don the volume using ossmix.

Why alsa didn't work remains a mystery since it appears that Ubuntu is using alsa and sound works under Ubuntu.