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[Aaron Peromsik <1272942@xxxxxxxxxxxxxxxxxx>]

The only thing I can think of is that we run pulseaudio in system mode,
so that MPD can be running regardless of who may or may not be logged in
on console.

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https://bugs.launchpad.net/bugs/1272942

Title:
  indicator-sound uses too much cpu under lightdm greeter

Status in “indicator-sound” package in Ubuntu:
  New

Bug description:
  Ubuntu 13.10 x64

  When nobody is logged in on console, but pulseaudio and mpd are
  running, indicator-sound uses 50-70% of CPU. This is bad for power
  consumption and also bad for background jobs running in a vnc4server
  session.

  from top:

  15215 lightdm   20   0  363m 4452 3440 R  68.8  0.1   0:20.62 indicator-sound
   1431 pulse      9 -11  398m 6972 3960 R  29.6  0.2   6:43.14 pulseaudio
  15103 root      20   0  201m  28m  22m R  27.9  0.8   0:09.51 Xorg
  15130 lightdm   20   0  834m  39m  26m S  15.3  1.1   0:05.99 unity-greeter

  If I uninstall indicator-sound, then pulseaudio doesn't show up in top
  either.

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