Mysteries of sound in Fedora-9

Tim ignored_mailbox at yahoo.com.au
Sun May 25 14:09:46 UTC 2008


On Sun, 2008-05-25 at 14:30 +0100, Timothy Murphy wrote:
> I'm still baffled by sound on my Fedora-9 + KDE ThinkPad T23.
> What puzzles me is that sound never works when I logon, 
> but starts at some point when I play with the sound settings.

Do you mean no sound until you fiddle with any settings (configurations,
or just user controls like volume), or that you expect some sound to
play as you login?  (Not my area, but clarifying such things might help
someone else answer you.)

> Today I muted the Front bar, and then unmuted it,
> and sound started working.

Perhaps it's starting up in a muted condition?  I seem to recall
something like that with alsa (yonks ago), that by default some volume
controls were off, and your last used settings weren't being used then
restored after logoff and reboot.

> Someone mentioned trying something like "cat foo.ogg > /dev/dsp".
> In my case, when sound is working this produces a white noise.
> Is this testing the sound driver
> (in my case snd_intel8x0 , I assume) directly?

If you catted a raw audio format, rather than a compressed one, to the
sound device, you ought to hear sound.  Hearing garbage isn't really
going to prove much.

-- 
[tim at bigblack ~]$ uname -ipr
2.6.23.15-80.fc7 i686 i386

Don't send private replies to my address, the mailbox is ignored.
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