I have not been able to reproduce this but my suspicion is that certain devices appear without ports and when the user attempts to move to them the current pattern gets itself into a muddle. This infinite recursion is one of the types of muddles we have witnessed over the past few weeks. Going by the bug reports, it usually occurs with input devices on usb cards.
The problem seems to be resolved by allowing the software centre to see ports that do not have volumes attached hence why I thought this is essentially a pulse audio bug. By allowing that visibility the devices will be treated properly and not incorrectly fall into the category of a bluetooth or network sink/source. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/963457 Title: [soundnua]: gnome-control-center crashed with SIGSEGV in g_mutex_lock() Status in “gnome-control-center” package in Ubuntu: In Progress Status in “pulseaudio” package in Ubuntu: Invalid Bug description: When changing a audio input between two sound cards. ProblemType: Crash DistroRelease: Ubuntu 12.04 Package: gnome-control-center 1:3.3.92-0ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-20.32-generic-pae 3.2.12 Uname: Linux 3.2.0-20-generic-pae i686 ApportVersion: 1.95-0ubuntu1 Architecture: i386 Date: Fri Mar 23 20:54:51 2012 EcryptfsInUse: Yes ExecutablePath: /usr/bin/gnome-control-center InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120201.1) ProcCmdline: gnome-control-center sound-nua ProcEnviron: SHELL=/bin/bash LANGUAGE=en_GB:en LANG=en_GB.UTF-8 SegvReason: writing unknown VMA Signal: 11 SourcePackage: gnome-control-center Title: [soundnua]: gnome-control-center crashed with SIGSEGV in g_mutex_lock() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/963457/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
