Audio unavailable with xbmc.service and pulseaudio [kinda solved]

If I attempt to change the audio source from system>system>audio output while running xbmc as a normal user, I can select any option from the "Audio output device" section [HDMI,Analog,Digital].  If I run the xbmc-standalone service (xbmc.service) however, that particular option is grayed out.  What am I missing?  The xbmc user has all the needed group memberships since I am using the "standalone" method from the wiki.
% grep xbmc /etc/group
network:x:90:xbmc
video:x:91:xbmc
audio:x:92:mpd,facade,xbmc
optical:x:93:xbmc
xbmc:x:420:
Last edited by graysky (2014-08-28 09:14:08)

Here are the debug logs when started from the xbmc.service and from a regular user both having identical ~/.xbmc directories.
Full logs
Launched from xbmc user via the systemd service (contains the error I described): link.
Launched from a proper lxde session by another user, works as expected: link.
Condensed version showing the differences
Seems like the proper lxde session gets more audio options but why?  link.
EDIT: I posted this to the official xbmc forums as well and a suggestion by one of the devs was that the systemd script does not wait long enough for the hdmi device to appear.   if I modify the upstream provided /usr/bin/xbmc-standalone to have a 6s delay (I actually started at 1 sec and incremented up to 6 which seems to be the minimum required on my hardware), it works as intended, but there must be a more elegant solution...
% diff -uprN a/usr/bin/xbmc-standalone b/usr/bin/xbmc-standalone
--- a/usr/bin/xbmc-standalone 2014-08-10 14:36:15.506231766 -0400
+++ b/usr/bin/xbmc-standalone 2014-08-10 14:35:55.442898816 -0400
@@ -28,6 +28,7 @@ if [ -n "$PULSE_START" ]; then
# delay needed to allow PA to initialize for xbmc
# to detect all audio sources
$PULSE_START
+ sleep 6s
else
PULSE_SESSION="$(which pulse-session)"
if [ -n "$PULSE_SESSION" ]; then
Last edited by graysky (2014-08-28 10:03:30)

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