Comment 18 for bug 108667

I fixed my problem! I ran across a possible solution on the web, and it worked. My more refined diagnosis now is that a user must be a member of the "audio" group to have the sound turned on, and this is not done by default when the user is created. I had to install the "KUser" package, and use it to assign users to the "audio" group, and after exiting KDE and logging in again, the sound worked.