PCM device is not there in audio configuration REDHAT
 

I am having dell laptop vostro 1400

i have installed redhat 5.1,in audio configuration -the right vard has detected as intel 82801h (ICH8)HD Audio controller
Module:-snd-hda-intel

ALSA DRIVER VERSION:-ALSA 1.0.14RC3
ALSA lib package:-alsa-lib-1.0.14-1 rc4.el5
ALSA utils pacakage:-alsa-utils -1.0.14-1 rc4.el5

and in desktopvolume control it is showing as MUTE.when opening that giving err as:-no volume controll GStreamer plugind and(or) devices found.


i am new to linux-any soltion for this ?:study: