Sound Card Not Working on Compaq Presario 2201 Laptop

[Manish Kathuria]

I have been trying to make the sound card on my Compaq Presario 2201 
Centrino Laptop work without any success on either FC3 or FC4. The 
laptop is currently running FC4 with kernel 2.6.13. The sound card is an 
onboard audio controller on Intel 855 chipset motherboard. The output of 
lspci detecting the audio controller is as below:

00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV 
Processor to I/O Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM 
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)

The system configured the generic intel8x0 sound module in the 
/etc/modprobe.conf.

alias snd-card-0 snd-intel8x0
options snd-card-0 index=0
install snd-intel8x0 /sbin/modprobe --ignore-install snd-intel8x0 && 
/usr/sbin/alsactl restore >/dev/null 2>&1 || :
remove snd-intel8x0 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; }; 
/sbin/modprobe -r --ignore-remove snd-intel8x0


The output of lsmod is as under showing that all the modules are loaded.

Module                  Size  Used by

snd_intel8x0m          19973  0
snd_intel8x0           37505  2
snd_ac97_codec         80829  2 snd_intel8x0m,snd_intel8x0
snd_seq_dummy           3781  0
snd_seq_oss            42945  0
snd_seq_midi_event     10177  1 snd_seq_oss
snd_seq                78033  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          9165  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            53105  0
snd_mixer_oss          18241  1 snd_pcm_oss
snd_pcm               112201  5 
snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              42437  2 snd_seq,snd_pcm
snd                    62021  13 
snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              12449  1 snd
snd_page_alloc         10825  3 snd_intel8x0m,snd_intel8x0,snd_pcm

What could be the problem with this ? I think that the intel8x0 might 
not be the right driver for this. Has anyone been able to make the sound 
work on the Compaq / HP Centrino Laptops ? Any suggestions or pointers ?

TIA,

Manish