Alsa problem

Adam Pribyl pribyl at
Sat Mar 17 21:23:58 UTC 2007

I do not think, this is a bug. When you plug in headset you have two 
audiodevices. USB comes first and overrides the second one, when you boot 
with headset plugged in.

gnome-volume-control is not significant to me, I would 
prefere to check modules loaded. I think you can fix this by assigning 
something like
alias snd-card-0 <your usual audio module>
in modprobe.conf
Or by removing alsa modules and inserting first the module with <you usual 
audio> first. (This I know works.)

Adam Pribyl

On Fri, 16 Mar 2007, oldman wrote:

> Hash: SHA1
>    I recently purchased a usb headset, and since I have nearly no
> experience with usb devices (save the printer which pretty much works
> well and transparently), plugged in, checked dmesg, saw that it was
> recognized. I opened up gnome-volume-control and found that I could
> select the headset as the speaker etc, etc.
>    The problem comes if I boot with the headset plugged in alsa /
> udev / hal apparently does not see the normal sound device (it does
> not appear in the gnome-volume-control).  I looked at
> /etc/asound.state as suggested by the alsactl man page and that looks
> like it should (it describes the state of many controls, many more
> than I currently show in alsamixer or volume-control).
>    If I boot to FC6 with the headset plugged in, all works well,
> volume-conntrol lists my normal soundcard, an oss device as well as
> the USB headset/microphone.
>    I looked in Bugzilla, but found nothing.  Any one else with
> similar problems?  Shoud BZ be filed against Hal? Udev? ALSA?  I lean
> towards Udev (the hardware works if USB is not plugged in and alsa
> works, though incorrectly)
> Scott
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