fedora16用了一段时间不知道什么时候笔记本音响就没声了。。。

求助阿，无奈我也不想成为伸手党，可是在度娘找了半天也没找到办法。。。各位大大帮我看看好吗
这是lspic -v：
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
Subsystem: Hewlett-Packard Company Device 30fe
Flags: bus master, slow devsel, latency 64, IRQ 16
Memory at 52400000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel

Audio device: ATI Technologies Inc RV620 Audio device [Radeon HD 34xx Series]
Subsystem: Hewlett-Packard Company Device 30fe
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at 52310000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
这个是lsmod
Module Size Used by
fuse 71231 3
lockd 73543 0
ip6t_REJECT 12782 2
nf_conntrack_ipv6 13885 2
nf_defrag_ipv6 13678 1 nf_conntrack_ipv6
ip6table_filter 12711 1
ip6_tables 17844 1 ip6table_filter
nf_conntrack_ipv4 14182 2
nf_defrag_ipv4 12601 1 nf_conntrack_ipv4
xt_state 12514 4
nf_conntrack 70512 3 nf_conntrack_ipv6,nf_conntrack_ipv4,xt_state
ir_lirc_codec 12869 0
lirc_dev 18920 1 ir_lirc_codec
ir_mce_kbd_decoder 13056 0
ir_sanyo_decoder 12727 0
ir_sony_decoder 12625 0
ir_jvc_decoder 12655 0
ir_rc6_decoder 12754 0
ir_rc5_decoder 12622 0
ir_nec_decoder 12787 0
rc_rc6_mce 12454 0
ene_ir 28106 0
arc4 12473 2
b43 343103 0
uvcvideo 66834 0
videobuf2_core 27177 1 uvcvideo
mac80211 427444 1 b43
videodev 87311 2 uvcvideo,videobuf2_core
media 19719 2 uvcvideo,videodev
cfg80211 169437 2 b43,mac80211
bcma 25040 1 b43
jmb38x_ms 18215 0
sp5100_tco 13417 0
i2c_piix4 13406 0
snd_hda_codec_hdmi 31469 1
snd_hda_codec_idt 63835 1
snd_hda_intel 32323 1
snd_hda_codec 102795 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep 13236 1 snd_hda_codec
snd_seq 54637 0
snd_seq_device 13817 1 snd_seq
videobuf2_vmalloc 12839 1 uvcvideo
r8169 51170 0
mii 13311 1 r8169
videobuf2_memops 13086 1 videobuf2_vmalloc
memstick 15347 1 jmb38x_ms
microcode 18642 0
k10temp 12951 0
rc_core 25550 11 ir_lirc_codec,ir_mce_kbd_decoder,ir_sanyo_decoder,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,ir_nec_decoder,rc_rc6_mce,ene_ir
snd_pcm 81170 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer 23896 2 snd_seq,snd_pcm
snd 62853 11 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore 14116 1 snd
snd_page_alloc 13709 2 snd_hda_intel,snd_pcm
hid_sunplus 12547 0
ssb 55028 1 b43
joydev 17124 0
hp_wmi 13616 0
sparse_keymap 13342 1 hp_wmi
rfkill 20417 3 cfg80211,hp_wmi
uinput 17246 0
sunrpc 196934 2 lockd
ata_generic 12779 0
pata_acpi 12875 0
pata_atiixp 12992 0
wmi 18273 1 hp_wmi
sdhci_pci 18108 0
sdhci 32642 1 sdhci_pci
mmc_core 97433 3 b43,ssb,sdhci
video 18500 0
radeon 750846 3
ttm 68064 1 radeon
drm_kms_helper 30903 1 radeon
drm 199418 5 radeon,ttm,drm_kms_helper
i2c_algo_bit 12980 1 radeon
i2c_core 28151 6 videodev,i2c_piix4,radeon,drm_kms_helper,drm,i2c_algo_bit