Cant get stereo sound with alsa

Question

i installed arch about 5 or 6 months ago and setup alsa for sound
The problem is that only the left speaker is working.  Somehow i have gone all this time without ever noticing.  I probably would still have not noticed except i booted into windows the other day, for the first time in about a year, and realized that I had two speakers working with media player.
i've scanned through the wiki and done some google and forum searching, but i can't seem to find anything about getting stereo sound to work with alsa.
Is anybody else having this problem?  What can i do to make both speakers work?
Last edited by tjwoosta (2009-04-30 19:35:44)

Answer 1

[tj@myhost ~]$ amixer contents
numid=2,iface=MIXER,name='Master Playback Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=1,iface=MIXER,name='Master Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0
: values=31,31
| dBscale-min=-46.50dB,step=1.50dB,mute=0
numid=7,iface=MIXER,name='PCM Playback Volume'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
: values=255,255
| dBscale-min=-51.00dB,step=0.20dB,mute=0
numid=5,iface=MIXER,name='Capture Switch'
; type=BOOLEAN,access=rw------,values=2
: values=on,on
numid=4,iface=MIXER,name='Capture Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=15,step=0
: values=15,15
| dBscale-min=0.00dB,step=1.50dB,mute=0
numid=8,iface=MIXER,name='Digital Capture Volume'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=120,step=0
: values=0,0
| dBscale-min=-30.00dB,step=0.50dB,mute=0
numid=3,iface=MIXER,name='Input Source' ; type=ENUMERATED,access=rw------,values=1,items=3
; Item #0 'Mic'
; Item #1 'Front Mic'
; Item #2 'CD'
: values=0
numid=6,iface=MIXER,name='Mux Capture Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=4,step=0
: values=0,0
| dBscale-min=0.00dB,step=10.00dB,mute=0
[tj@myhost ~]$
i have no idea what any of this means