Sound problem

zhh zhaihua5 at
Tue May 27 16:52:43 UTC 2008

Dear all
	This evening my computer reboot unexpected because of my firefox's bug.
The same thing had happened several times before. But now strange thing
happened and my machine has no sound now.
	I have input command "alsamixer" and it reply as below:

alsamixer: function snd_ctl_open failed for default: No such file or

	what should I do now?

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