Fedora Users — Re: sound card not detected on FC12 out of the blue

I downgraded to 2.6.31.5-127 and I still have the same issue. The odd thing is that the slider volume control on my keyboard still "works" in the sense that the computer knows to adjust the volume--but it just goes to a dummy output device. I notice that the hda-related modules aren't loaded, so I tried loading those. No success there, however. It might be useful to note that I was trying to get a USB TV tuner to work earlier--in so doing perhaps something went wrong with the sound modules.

On Sun, Mar 7, 2010 at 1:23 AM, David Christopher Chipman <dchipman@xxxxxxxx> wrote:

Emerson French wrote:
> Hi,
>
> It has been several years (literally) since I have had major sound problems
> under Linux, since sound support has gotten much better. However, my sound
> recently stopped working, and I'm mystified. I'm using an HP Pavilion
> dv9700, which I believe uses an Intel HD audio card. I've gone through
a few
> kernel upgrades on this machine recently, but support for these cards is
> enabled, so I can't imagine that's the issue. My sound card isn't listed on
> inspection of /proc/asound/cards and /dev/dsp is missing, though with the
> deprecation of OSS maybe this isn't even an issue. I'm pretty familiar with
> Linux, but not so much with sound cards, so I'm not really sure where to
> begin in resolving this. Any help would be greatly appreciated.
>

Hi Emerson,

It sounds like you have a kernel issue. Do you remember when the sound
stopped working? If you do, and you have multiple kernels installed, I
would try booting the system with an earlier kernel
(Command line: rpm -qa --last kernel ).

See if that fixes the sound issue. Good luck,, and let us know (or
file a bug in bugzilla under "kernel")

-David

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