Kernel update to 2.6.30.5-43.fc11.x86_64 issues

[Prasan]

> I also have this sound popping issue in new kernel. Apart from that I
> found that my audio input from built-in microphone in my Dell Inspiron
> laptop also does not work in any application  in both new
> 2.6.30.5-43.fc11.x86_64 kernel and the old 2.6.29 kernel. (arecord,
> gstreamer-properties, skype etc..). But in the 2.6.29 kernels sound
> popping is not there.

Last few days both kernel alsa and pulseaudio was updated. Now I have
popping sound in speakers and audio input from built-in mics also does
not work. Reverting to a old 2.6.29 kernel stops popping but internal
mic does not work.

So now I want to fix this mic input issue first. In Fedora where
should I put options for snd-hda-intel. Is it ok if I created a file
'/etc/modprobe.d/alsa-base.conf' and put the line

options snd-hda-intel model=dell-m4-2

According to my alsa-info profile @
http://www.alsa-project.org/db/?f=3b1e182bec5d61aec5af6a8b687d2efa6b167233
I have a ICH9 audio controller with a Codec called IDT 92HD71B7X.