Thanks to Patrick and Lee
i have read the state of capture source with amixer command
[candido@s167m40 musica]$ amixer cget name='Capture Source'
numid=24,iface=MIXER,name='Capture Source'
; type=ENUMERATED,access=rw---,values=2,items=8
; Item #0 'Mic'
; Item #1 'CD'
; Item #2 'Video'
; Item #3 'Aux'
; Item #4 'Line'
; Item #5 'Mix'
; Item #6 'Mix Mono'
; Item #7 'Phone'
: values=1,1
and CD is configurated like capture source ... so the alsamixer aplication
has not control with the capture source
[candido@s167m40 musica]$ amixer cset name='Capture
Source' 0,0 ..... is the solution
i dont know if alsamixer has a paremeter control for SOURCE CAPTURE of ICH5
intel chipset ??????
Best Regards