anagor: You are correct, I am not in the pulse-rt group which would
probably help.

However, in my searching I discovered something that I think was the
main cause behind my stuttering. Before I updated jaunty, I didn't have
the ath5k driver, and I've been using ethernet to connect to networks. I
just checked dmesg and found many messages like this (every 20 seconds
or so):

ath5k phy0: noise floor calibration timeout (2412MHz)

Something in the jaunty update must have installed the ath5k module and
it was auto-loaded into the kernel. Removing it seems to have made my
audio far less stuttery (one or two pops and clicks so far). Obviously,
the presence of this module, doesn't mean I *should* get stuttery audio,
but it seems to be a contributing factor. Anagor, perhaps you have an
ath5k driver causing similar stutter problems?

I don't know enough about the ath5k or pulseaudio codebases to determine
whos fault it is :)

But my ath5k hardware doesn't seem to work whatsoever, and, despite the
fact that ath5k loaded, the "Support for Atheros 802.11 wireless LAN
cards" is disabled in the hardware drivers dialog. My ath5k did work on
intrepid with the backports modules.

lspci for ath5k card:
03:00.00 Ethernet controller: Atheros Communications Inc. AR242x 802.11abcg 
Wireless PCI Express Adapter

(Again, I'll get more info when i get back from work =)

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

-- 
Pulseaudio daemon needs manual kill/restart every boot on HDA Intel ICH7
https://bugs.launchpad.net/bugs/322760
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