indicator-sound uses too much cpu under lightdm greeter

[Aaron Peromsik]

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.

[Sebastien Bacher (seb128)]

Thank you for your bug report, that seems an issue indeed, you are the first one to report it though ... do you have any idea what could be special about your configuration?

[Aaron Peromsik (aperomsik)]

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.