求助：装了红旗6.0 sp2，但是用它总是没声音

我是个菜鸟。最近装了红旗6.0 sp2，但是用它总是没声音，在linux人看了些资料，但不明白。

[root@localhost ~]# lsmod|grep snd
snd_intel8x0m 16652 1
snd_intel8x0 30364 3
snd_ac97_codec 93988 2 snd_intel8x0m,snd_intel8x0
ac97_bus 5760 1 snd_ac97_codec
snd_seq_dummy 6788 0
snd_seq_oss 30748 0
snd_seq_midi_event 10368 1 snd_seq_oss
snd_seq 46248 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 10636 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 37280 0
snd_mixer_oss 16896 1 snd_pcm_oss
snd_pcm 66692 5 snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pc m_oss
snd_timer 21768 3 snd_seq,snd_pcm
snd 52536 17 snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_s eq_dummy,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,sn d_timer
snd_page_alloc 11784 3 snd_intel8x0m,snd_intel8x0,snd_pcm

[root@localhost ~]# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 82801DB-ICH4]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 4: Intel ICH - IEC958 [Intel 82801DB-ICH4 - IEC958]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Modem [Intel 82801DB-ICH4 Modem], device 0: Intel ICH - Modem [Intel 82801DB-ICH4 Modem - Modem]
Subdevices: 1/1
Subdevice #0: subdevice #0

[root@localhost ~]# lspci -s $(lspci | grep -i audio | cut -f 1 -d ' ') -v
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
Subsystem: Fujitsu Limited. Unknown device 1200
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at 1c00 [size=256]
I/O ports at 1880 [size=64]
Memory at d0100c00 (32-bit, non-prefetchable) [size=512]
Memory at d0100800 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2

[root@localhost ~]# lspci -s $(lspci | grep -i audio | cut -f 1 -d ' ') -v -n
00:1f.5 0401: 8086:24c5 (rev 03)
Subsystem: 10cf:1200
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at 1c00 [size=256]
I/O ports at 1880 [size=64]
Memory at d0100c00 (32-bit, non-prefetchable) [size=512]
Memory at d0100800 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
那位高手请帮帮忙。谢谢。