Do you still get the issue? Could you install libglib2.0-0-dbg and get a
new stacktrace? It would also useful if you could do:
- gdb gnome-control-center
(gdb) run sound
... you should hit the bug and gdb should stop
then type "frame 6"
(or whatever number correspond to that code line: #6 0x00007fffc8cfc49a
in gvc_mixer_control_lookup_device_from_stream
(control=control@entry=0x555555af2690,
stream=stream@entry=0x5555559e3570) at gvc-mixer-control.c:229)
then type "print *device"
** Changed in: gnome-control-center (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1056334
Title:
sound capplet segfaults in
gvc_mixer_control_lookup_device_from_stream()
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
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https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1056334/+subscriptions
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