请大家看一下，我的声卡为什么不发声？

[ydw1209]

我的主板是双敏URC410NC，采用ATIIXP450南桥芯片，内置R肿ALC655 AC97 Codec。系统识别的声卡为ATIIXP SB400 AC'97 Audio Controller，下面是一此数据，帮忙看一下，问题出在什么地方：
root@ydw-desktop:~# lsmod
Module Size Used by
nls_utf8 3200 1
sg 37404 0
sd_mod 22656 2
usb_storage 75072 1
scsi_mod 144648 3 sg,sd_mod,usb_storage
libusual 17040 1 usb_storage
ipt_TCPMSS 5376 1
xt_tcpmss 3456 1
xt_tcpudp 4480 1
iptable_filter 4224 1
ip_tables 15204 1 iptable_filter
x_tables 16132 4 ipt_TCPMSS,xt_tcpmss,xt_tcpudp,ip_tables
pppoe 16064 2
pppox 4872 1 pppoe
ppp_generic 30612 6 pppoe,pppox
slhc 8448 1 ppp_generic
ipv6 272288 10
binfmt_misc 13448 1
rfcomm 42260 0
l2cap 27136 5 rfcomm
bluetooth 53476 4 rfcomm,l2cap
speedstep_lib 5764 0
cpufreq_userspace 5408 0
cpufreq_stats 7744 0
freq_table 6048 1 cpufreq_stats
cpufreq_powersave 2944 0
cpufreq_ondemand 8876 0
cpufreq_conservative 8712 0
video 17540 0
tc1100_wmi 8324 0
sony_acpi 6412 0
sbs 16804 0
pcc_acpi 14080 0
i2c_ec 6272 1 sbs
i2c_core 23424 1 i2c_ec
hotkey 11556 0
dev_acpi 12292 0
container 5632 0
button 7952 0
battery 11652 0
asus_acpi 17688 0
ac 6788 0
nls_iso8859_1 5248 3
nls_cp437 6912 4
vfat 14720 4
fat 56348 1 vfat
lp 12964 0
af_packet 24584 4
snd_atiixp 21388 0
snd_ac97_codec 97696 1 snd_atiixp
snd_ac97_bus 3456 1 snd_ac97_codec
snd_pcm_oss 47360 0
snd_mixer_oss 19584 1 snd_pcm_oss
tsdev 9152 0
parport_pc 37796 1
parport 39496 2 lp,parport_pc
8139cp 24832 0
8139too 29056 0
snd_pcm 84612 3 snd_atiixp,snd_ac97_codec,snd_pcm_oss
snd_timer 25348 1 snd_pcm
snd 58372 6 snd_atiixp,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 11232 1 snd
snd_page_alloc 11400 2 snd_atiixp,snd_pcm
ati_agp 10636 0
agpgart 34888 1 ati_agp
serio_raw 8452 0
mii 6912 2 8139cp,8139too
evdev 11392 1
pcspkr 4352 0
psmouse 41352 0
floppy 63044 0
shpchp 42144 0
pci_hotplug 32828 1 shpchp
ext3 142728 1
jbd 62228 1 ext3
ehci_hcd 34696 0
ohci_hcd 22532 0
usbcore 134912 5 usb_storage,libusual,ehci_hcd,ohci_hcd
ide_generic 2432 0
ide_cd 33696 0
cdrom 38944 1 ide_cd
ide_disk 18560 6
generic 5764 0
atiixp 7824 1
thermal 15624 0
processor 31560 1 thermal
fan 6020 0
fbcon 41504 0
tileblit 3840 1 fbcon
font 9344 1 fbcon
bitblit 7168 1 fbcon
softcursor 3328 1 bitblit
vesafb 9244 0
capability 5896 0
commoncap 8704 1 capability


moduies上的数据：

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.

lp

[青菜]

我的情况和楼主一样阿！！！本来alsamixer可以设置的，今天下了个alsa的最新驱动包，想装一下，结果现在alsamixer也不能用了。。。一直都没有声音，哪位高手说下，ubuntuEdgy 下声卡驱动怎么搞阿？

Module Size Used by
nls_cp437 6912 0
isofs 38076 0
udf 89348 0
binfmt_misc 13448 1
rfcomm 42260 0
l2cap 27136 5 rfcomm
bluetooth 53476 4 rfcomm,l2cap
fglrx 406988 8
cpufreq_userspace 5408 0
cpufreq_stats 7744 0
freq_table 6048 1 cpufreq_stats
cpufreq_powersave 2944 0
cpufreq_ondemand 8876 0
cpufreq_conservative 8712 0
video 17540 0
tc1100_wmi 8324 0
sony_acpi 6412 0
sbs 16804 0
pcc_acpi 14080 0
i2c_ec 6272 1 sbs
i2c_core 23424 1 i2c_ec
hotkey 11556 0
dev_acpi 12292 0
container 5632 0
button 7952 0
battery 11652 0
asus_acpi 17688 0
ac 6788 0
ipv6 272288 14
af_packet 24584 0
lp 12964 0
pcmcia 40380 0
snd_atiixp_modem 17800 0
snd_atiixp 21388 1
joydev 11200 0
8139cp 24832 0
8139too 29056 0
snd_ac97_codec 97696 2 snd_atiixp_modem,snd_atiixp
snd_ac97_bus 3456 1 snd_ac97_codec
snd_pcm_oss 47360 0
snd_mixer_oss 19584 1 snd_pcm_oss
tsdev 9152 0
mii 6912 2 8139cp,8139too
usbhid 45152 0
evdev 11392 1
yenta_socket 28812 1
rsrc_nonstatic 15360 1 yenta_socket
pcmcia_core 43924 3 pcmcia,yenta_socket,rsrc_nonstatic
parport_pc 37796 1
parport 39496 2 lp,parport_pc
sdhci 20108 0
mmc_core 32392 1 sdhci
snd_pcm 84612 4 snd_atiixp_modem,snd_atiixp,snd_ac97_codec,snd_pcm_oss
snd_timer 25348 1 snd_pcm
snd 58372 9 snd_atiixp_modem,snd_atiixp,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 11232 1 snd
snd_page_alloc 11400 3 snd_atiixp_modem,snd_atiixp,snd_pcm
pcspkr 4352 0
psmouse 41352 0
serio_raw 8452 0
shpchp 42144 0
pci_hotplug 32828 1 shpchp
ati_agp 10636 0
agpgart 34888 2 fglrx,ati_agp
irtty_sir 10112 0
sir_dev 18308 1 irtty_sir
irda 214332 2 irtty_sir,sir_dev
crc_ccitt 3200 1 irda
ext3 142728 1
jbd 62228 1 ext3
ehci_hcd 34696 0
ohci_hcd 22532 0
usbcore 134912 4 usbhid,ehci_hcd,ohci_hcd
ide_generic 2432 0
ide_cd 33696 0
cdrom 38944 1 ide_cd
ide_disk 18560 3
generic 5764 0
atiixp 7824 1
thermal 15624 0
processor 31560 1 thermal
fan 6020 0
fbcon 41504 0
tileblit 3840 1 fbcon
font 9344 1 fbcon
bitblit 7168 1 fbcon
softcursor 3328 1 bitblit
vesafb 9244 0
capability 5896 0
commoncap 8704 1 capability
lopor@lopor-laptop:/etc$ su
Password:
root@lopor-laptop:/etc# lsmod
Module Size Used by
nls_cp437 6912 0
isofs 38076 0
udf 89348 0
binfmt_misc 13448 1
rfcomm 42260 0
l2cap 27136 5 rfcomm
bluetooth 53476 4 rfcomm,l2cap
fglrx 406988 8
cpufreq_userspace 5408 0
cpufreq_stats 7744 0
freq_table 6048 1 cpufreq_stats
cpufreq_powersave 2944 0
cpufreq_ondemand 8876 0
cpufreq_conservative 8712 0
video 17540 0
tc1100_wmi 8324 0
sony_acpi 6412 0
sbs 16804 0
pcc_acpi 14080 0
i2c_ec 6272 1 sbs
i2c_core 23424 1 i2c_ec
hotkey 11556 0
dev_acpi 12292 0
container 5632 0
button 7952 0
battery 11652 0
asus_acpi 17688 0
ac 6788 0
ipv6 272288 14
af_packet 24584 0
lp 12964 0
pcmcia 40380 0
snd_atiixp_modem 17800 0
snd_atiixp 21388 1
joydev 11200 0
8139cp 24832 0
8139too 29056 0
snd_ac97_codec 97696 2 snd_atiixp_modem,snd_atiixp
snd_ac97_bus 3456 1 snd_ac97_codec
snd_pcm_oss 47360 0
snd_mixer_oss 19584 1 snd_pcm_oss
tsdev 9152 0
mii 6912 2 8139cp,8139too
usbhid 45152 0
evdev 11392 1
yenta_socket 28812 1
rsrc_nonstatic 15360 1 yenta_socket
pcmcia_core 43924 3 pcmcia,yenta_socket,rsrc_nonstatic
parport_pc 37796 1
parport 39496 2 lp,parport_pc
sdhci 20108 0
mmc_core 32392 1 sdhci
snd_pcm 84612 4 snd_atiixp_modem,snd_atiixp,snd_ac97_codec,snd_pcm_oss
snd_timer 25348 1 snd_pcm
snd 58372 9 snd_atiixp_modem,snd_atiixp,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 11232 1 snd
snd_page_alloc 11400 3 snd_atiixp_modem,snd_atiixp,snd_pcm
pcspkr 4352 0
psmouse 41352 0
serio_raw 8452 0
shpchp 42144 0
pci_hotplug 32828 1 shpchp
ati_agp 10636 0
agpgart 34888 2 fglrx,ati_agp
irtty_sir 10112 0
sir_dev 18308 1 irtty_sir
irda 214332 2 irtty_sir,sir_dev
crc_ccitt 3200 1 irda
ext3 142728 1
jbd 62228 1 ext3
ehci_hcd 34696 0
ohci_hcd 22532 0
usbcore 134912 4 usbhid,ehci_hcd,ohci_hcd
ide_generic 2432 0
ide_cd 33696 0
cdrom 38944 1 ide_cd
ide_disk 18560 3
generic 5764 0
atiixp 7824 1
thermal 15624 0
processor 31560 1 thermal
fan 6020 0
fbcon 41504 0
tileblit 3840 1 fbcon
font 9344 1 fbcon
bitblit 7168 1 fbcon
softcursor 3328 1 bitblit
vesafb 9244 0
capability 5896 0
commoncap 8704 1 capability