How should gdm gnome-shell start pulseaudio?

[Neil Bird <gnome fnxweb com>]

  Does anyone know how pulseaudio should be started?  In particular, 
gdm's special-mode one?  On my box, pulseaudio is not running (or dying) 
for the gdm+gnome-shell session, although it *really* wants it.  All 
normal users are fine.

  The side effect is that, some while after logging in, or possibly as 
I switch users, I get an entry in /var/log/messages every few seconds 
about a pulseaudio authorisation error.  I believe I have tracked these 
down to gdm's gnome-shell & gnome-settings-daemon trying to talk to *my* 
login's pulseaudio (as it's the first login and is sitting on the 
default port?).

  I can stop the errors by manually running a pulseaudio as gdm with 
the right environment, but that usually goes away after a while (and 
doesn't respawn) :-/

  And, as it happens, I don't even have a permanent gdm gnome-shell at 
this moment;  I don't know why it's now gone (it's usually there while 
others are logged in.

--
[phoenix@fnx ~]# rm -f .signature
[phoenix@fnx ~]# ls -l .signature
ls: .signature: No such file or directory
[phoenix@fnx ~]# exit