Re: [gentoo-amd64] Re: Alsa Config keeps disappearing (Appears Cured)

[sean]

Thanks to all the helpful replies, and some things on my own, things
appear to be working.

As of this writing I have had three successful system starts and the
sound is now working properly on bootup.
Hopefully it will hold.
Some history below.

In the /etc/modprobe.d/alsa file I had tried specifying my motherboard
sound card as the only card. It did not work.
The USB Quickcam using snd_usb_audio always came up as the default sound
device. The cause of the problem.
I even tried to accommodate it and make it sound card two, but it still
 insisted on being default.

Here are pieces of that /etc/modprobe.d/alsa file with the current
settings that work, so far.

##  ALSA portion
alias snd-card-0 snd_intel8x0
# alias snd-card-1 snd_usb_audio
##  OSS/Free portion
alias sound-slot-0 snd_intel8x0
# alias sound-slot-1 snd_usb_audio

# Set this to the correct number of cards.
options snd cards_limit=1
# options snd cards_limit=2

As you can see I currently have the snd_usb_audio commented out, since
making it the number two card made no difference.

I noticed a file called blacklist.conf in the same directory and was
curious.I saw the following comment and began to wonder.

# Autoloading eth1394 most of the time re-orders your network
# interfaces, and with buggy kernel 2.6.21, udev persistent-net
# is not able to rename these devices, so you get eth?_rename devices
# plus an exceeded 30sec boot timeout
blacklist eth1394

So I decided to try the following added to that file
blacklist snd_usb_audio

So far, as mentioned, since I added that comment alsa has worked on
startup with the webcam plugged in, and when I tested the webcam for
sound and video using the Ekiga test callback number sound and video worked.
No other problems appear evident due to my putting these settings in place.
Can anyone see a possible problem?

Hope it helps anyone with a similar problem, and again, thanks to all
for the help.

		Sean