I'm quite sure this as nothing to do with gstreamer. Sorry for that if my previous post was not clear enough. I didn't manage to get apport-retrace working (apport did not log anything usefull in /var/crash) but here is a backtrace anyway:
#0 _IO_vfprintf_internal (s=0x7fffff7ff620, format=0x7fffc8d09428 "\n lookup device from stream - %s - it is a network_stream \n", ap=0x7fffff7ff848) at vfprintf.c:1329 #1 0x00007ffff540b8b1 in __GI___vasprintf_chk (result_ptr=0x7fffff7ff768, flags=1, format=0x7fffc8d09428 "\n lookup device from stream - %s - it is a network_stream \n", args=0x7fffff7ff848) at vasprintf_chk.c:68 #2 0x00007ffff596177b in g_vasprintf () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007ffff594146d in g_strdup_vprintf () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007ffff592bc42 in g_logv () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007ffff592bfb2 in g_log () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x00007fffc8cfc49a in gvc_mixer_control_lookup_device_from_stream (control=control@entry=0x555555af2690, stream=stream@entry=0x5555559e3570) at gvc-mixer-control.c:229 #7 0x00007fffc8cff661 in gvc_mixer_control_set_default_source (control=control@entry=0x555555af2690, stream=stream@entry=0x5555559e3570) at gvc-mixer-control.c:335 #8 0x00007fffc8d01b22 in gvc_mixer_control_change_input (control=0x555555af2690, input=0x555555e51210) at gvc-mixer-control.c:684 #9 0x00007fffc8cec2d6 in on_input_selection_changed (selection=<optimized out>, dialog=0x555555d98000) at gvc-mixer-dialog.c:1501 #10 0x00007ffff5be44fb in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #11 0x00007ffff5bfe118 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #12 0x00007ffff5bfe852 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #13 0x00007ffff7165669 in gtk_tree_selection_select_path () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 #14 0x00007ffff7165741 in gtk_tree_selection_select_iter () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 #15 0x00007fffc8cec5d6 in active_input_update (active_input=0x555555e51210, dialog=0x555555d98000) at gvc-mixer-dialog.c:746 #16 on_control_active_input_update (control=<optimized out>, id=<optimized out>, dialog=0x555555d98000) at gvc-mixer-dialog.c:1369 #17 0x00007ffff5be68b9 in g_cclosure_marshal_VOID(unsigned int0_t, void) () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #18 0x00007ffff5be44fb in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #19 0x00007ffff5bfe118 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #20 0x00007ffff5bfe852 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #21 0x00007fffc8cff690 in gvc_mixer_control_set_default_source (control=control@entry=0x555555af2690, stream=stream@entry=0x5555559e3570) at gvc-mixer-control.c:336 #22 0x00007fffc8d01b22 in gvc_mixer_control_change_input (control=0x555555af2690, input=0x555555e51210) at gvc-mixer-control.c:684 #23 0x00007fffc8cec2d6 in on_input_selection_changed (selection=<optimized out>, dialog=0x555555d98000) at gvc-mixer-dialog.c:1501 #24 0x00007ffff5be44fb in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #25 0x00007ffff5bfe118 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #26 0x00007ffff5bfe852 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #27 0x00007ffff7165669 in gtk_tree_selection_select_path () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 #28 0x00007ffff7165741 in gtk_tree_selection_select_iter () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 #29 0x00007fffc8cec5d6 in active_input_update (active_input=0x555555e51210, dialog=0x555555d98000) at gvc-mixer-dialog.c:746 #30 on_control_active_input_update (control=<optimized out>, id=<optimized out>, dialog=0x555555d98000) at gvc-mixer-dialog.c:1369 -- 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/1056334 Title: sound capplet segfaults Status in “gnome-control-center” package in Ubuntu: Incomplete Bug description: Since the update to libgstreamer1.0, the sound module in gnome- control-center crashes on startup. $ export LANG=C $ gdb gnome-control-center GNU gdb (GDB) 7.5-ubuntu Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/bin/gnome-control-center...(no debugging symbols found)...done. (gdb) r sound Starting program: /usr/bin/gnome-control-center sound [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffee641700 (LWP 2442)] [New Thread 0x7fffe7fff700 (LWP 2443)] [New Thread 0x7fffe4adf700 (LWP 2444)] [Thread 0x7fffe4adf700 (LWP 2444) exited] [New Thread 0x7fffe4adf700 (LWP 2445)] Program received signal SIGSEGV, Segmentation fault. _IO_vfprintf_internal (s=0x7fffff7ff620, format=0x7fffc8d09428 "\n lookup device from stream - %s - it is a network_stream \n", ap=0x7fffff7ff848) at vfprintf.c:1329 1329 vfprintf.c: No such file or directory. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: gnome-control-center 1:3.4.2-0ubuntu15 ProcVersionSignature: Ubuntu 3.5.0-15.23-generic 3.5.4 Uname: Linux 3.5.0-15-generic x86_64 ApportVersion: 2.5.2-0ubuntu4 Architecture: amd64 Date: Tue Sep 25 19:05:24 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) SourcePackage: gnome-control-center UpgradeStatus: Upgraded to quantal on 2012-08-24 (31 days ago) usr_lib_gnome-control-center: activity-log-manager-control-center 0.9.4-0ubuntu3 deja-dup 23.92-0ubuntu1 gnome-control-center-signon 0.0.17-0ubuntu1 indicator-datetime 12.10.1-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1056334/+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