On Fri, Oct 30, 2009 at 10:13 PM, Brian J. Murrell <brian at interlinx.bc.ca> wrote: > Ah ha. ?But somebody said "backend" ?That above looks like > metacity/libcanberra are using an ALSA "backend". ?Let's see what kind > of pulse alternative there is... ?Yup... ?Just installed > "libcanberra-pulse". ?Let's see how that changes the "user > experience". ?:-) Do you have ubuntu-desktop installed? A proper installation and upgrade has this package installed. ubuntu-desktop depends on gnome-session-canberra, and gnome-session-canberra Recommends libcanberra-pulse. As noted here[0], Recommends are installed by default by apt-get/aptitude/Synaptic/KPackageKit. -Dan [0] http://www.ubuntu.com/getubuntu/releasenotes/910#Recommended%20packages%20installed%20by%20default