Some more findings: Htop shown me too that pulseaudio use ~15 % of cpu. So, in a console i run : sudo dpkg-reconfigure pulseaudio. This command stop & restart pulseaudio.
And the good surprise now: there is no more over eating cpu activity: -no more trouble with previous gnome-volume-control-applet - nor with pulseaudio - and i can now open system/preferences/sound So, it appear that it's clearly a problem of pulseaudio or of one of its dependencies -- gnome-volume-control-applet takes up to 40% cpu https://bugs.launchpad.net/bugs/400820 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-media in ubuntu. -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
