原帖：
This is how I managed to use the buggy_semaphore option:
1- go to the /etc/modprobe.d directory (cd /etc/modprobe.d)
2- edit file alsa-base (sudo vi alsa-base)
3- find the line which says something like this:
options snd-intel8x0m index=-2
4- put buggy_semaphore=1 at the end of the line:
options snd-intel8x0m index=-2 buggy_semaphore=1
5- save the file (:wq)
6- reboot your system
照这个做了没用
看了后面的：
#Comment out the following line
#options snd-intel8x0m index=-2
# Added the next line
options snd-intel8x0 buggy_semaphore=1
Then rebooted the system.
Note, I'm using snd-intel8x0 instead of snd-intel8x0m, removed index=-2, and added buggy_semaphore=1
This was with Dapper on a 32 bit system.

简单说
就是把/etc/modprobe.d／alsa-base中的
options snd-intel8x0m index=-2
换成
options snd-intel8x0 buggy_semaphore=1
就OK了。