Steps to reproduce:
1) Connect a USB headset so you have at least two sound card inputs
2) Start your favorite recording program - I've tested with both audacity and mumble
3) Make sure this recording program is set to record from pulseaudio and start recording
4) Open gnome-control-center and change the default sound input from one card to the other.
At this point, these two things can be observed:
Problem A) The input stream is not moved from one input to the other.
Problem B) The input gain of the source we move from, is changed.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gnome-control-center 1:3.4.0-0ubuntu7
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic i686
ApportVersion: 2.0.1-0ubuntu3
Architecture: i386
Date: Wed Apr 18 09:34:16 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=sv_SE.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_gnome-control-center:
activity-log-manager-control-center 0.9.4-0ubuntu3
deja-dup 22.0-0ubuntu2
gnome-bluetooth 3.2.2-0ubuntu5
indicator-datetime 0.3.94-0ubuntu1
Raising importance - this is a generic problem and a regression compared to the old sound settings UI