AC97声卡不能发声！

酋长

我的声卡
root@ubuntu:/home/hcw# lspci | grep audio
0000:00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)

点击小喇叭出现的错误
The volume control did not find any elements and/or devices to control. This means either that you don't have the right GStreamer plugins installed, or that you don't have a sound card configured.

Ubuntu6.06
刚装上6.06时声卡还可以用，后来不知道升级了什么软件包，现在怎么也用不了