系统没有声音是什么问题？

[i=s] 本帖最后由 BINGOWEN 于 2011-7-21 10:27 编辑 [/i]

装完系统好好的，装完软件也没问题，结果一更新完早上起来就没声了= =


求高手指点迷津啊～～～～百度了好久都没彻底治愈、、、、、痛苦好久了T。T

bingowen@ubuntu:~$ aplay -l
**** PLAYBACK 硬??置清? ****
card 0: SB [HDA ATI SB], device 0: ALC269VB Analog [ALC269VB Analog]
子设备: 1/1
子设备 #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
子设备: 1/1
子设备 #0: subdevice #0


bingowen@ubuntu:~$ ls -la /dev/snd
总用量 0
drwxr-xr-x 3 root root 240 2011-07-21 10:02 .
drwxr-xr-x 19 root root 4440 2011-07-21 10:18 ..
drwxr-xr-x 2 root root 80 2011-07-21 10:02 by-path
crw-rw----+ 1 root audio 116, 5 2011-07-21 10:02 controlC0
crw-rw----+ 1 root audio 116, 8 2011-07-21 10:02 controlC1
crw-rw----+ 1 root audio 116, 4 2011-07-21 10:02 hwC0D0
crw-rw----+ 1 root audio 116, 7 2011-07-21 10:02 hwC1D0
crw-rw----+ 1 root audio 116, 3 2011-07-21 10:19 pcmC0D0c
crw-rw----+ 1 root audio 116, 2 2011-07-21 10:20 pcmC0D0p
crw-rw----+ 1 root audio 116, 6 2011-07-21 10:12 pcmC1D3p
crw-rw----+ 1 root audio 116, 1 2011-07-21 10:02 seq
crw-rw----+ 1 root audio 116, 33 2011-07-21 10:02 timer


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万分感激啊！！！！！！