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Ubuntu没有声音了怎么办？ zz

Ubuntu没有声音了怎么办？ zz

http://forum.ubuntu.org.cn/viewtopic.php?p=964475

1. ??????????????audio????????????

ls -la /dev/snd

????????????????????????

total 0
drwxr-xr-x 2 root root 180 2008-05-14 08:53 .
drwxr-xr-x 12 root root 4580 2008-05-15 13:01 ..
crw-rw----+ 1 root root 116, 8 2008-05-14 08:53 controlC0
crw-rw----+ 1 root root 116, 7 2008-05-14 08:53 hwC0D2
crw-rw----+ 1 root root 116, 6 2008-05-14 08:54 pcmC0D0c
crw-rw----+ 1 root root 116, 5 2008-05-14 14:04 pcmC0D0p
crw-rw----+ 1 root root 116, 4 2008-05-14 08:53 pcmC0D1p
crw-rw----+ 1 root root 116, 3 2008-05-14 08:53 seq
crw-rw----+ 1 root root 116, 2 2008-05-14 08:53 timer

?????root?audio???????? ????????????
?root?Volume Control????????????????????
??????????audio???????????????????

sudo chmod -R a+rwx /dev/snd

??????????????????? ?????????

sudo usermod -a -G audio usrname.

???????usrname???audio???

from http://blog.csdn.net/hecssy/archive/2008/08/23/2816887.aspx

2. ??????

ls -la /dev/snd????????????
?????????????????????????????????????????????
???????????????????????????????????????????????????????????????????????????????????? ?OK
??????????????????????????????

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