[soundnua]: gnome-control-center crashed with SIGSEGV in _gtk_marshal_VOID__OBJECT_BOXED_BOOLEAN_BOOLEANv() when selecting a different audio input device

[Steffen K.]

It happens everytime i try to select a different audio input device in the input device list.

I reproduced the error several times. The segfault seems to occur in different libs randomly.

The segfaults in different libs according to dmesg for each time i reproduced it:

1. libgtk-3.so.0.400.0
2. libglib-2.0.so.0.3200.0
3. libc-2.15.so
4. libgobject-2.0.so.0.3200.0
5. libgobject-2.0.so.0.3200.0
6. libc-2.15.so
7. libglib-2.0.so.0.3200.0
8. libc-2.15.so
9. libglib-2.0.so.0.3200.0
10. libc-2.15.so
11. libc-2.15.so
12. libgobject-2.0.so.0.3200.0
13. libc-2.15.so

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-control-center 1:3.4.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
Uname: Linux 3.2.0-21-generic x86_64
ApportVersion: 2.0-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Sat Mar 31 21:17:42 2012
ExecutablePath: /usr/bin/gnome-control-center
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64+mac (20110427.1)
ProcCmdline: gnome-control-center sound-nua
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=de_DE.UTF-8
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: gnome-control-center
Title: [soundnua]: gnome-control-center crashed with SIGSEGV in g_signal_emit_valist()
UpgradeStatus: Upgraded to precise on 2012-02-04 (56 days ago)
UserGroups: adm admin audio cdrom debian-tor dialout fuse libvirtd lpadmin plugdev sambashare vde2-net

[Steffen K. (sk-gobuki)]

With a workaround i can not select the input device of my Mackie ProFX 12 mixer to be able to record from it.

I opened pavucontrol and went to the configuration tab. There i changed the profile of the mixer device 'PCM2903B Audio Codec' to from 'Analog Stereo Duplex' to 'Analog Stereo Output + Digital Stereo (IEC958) Input'.
After that in gnome-control-center, instead of two input devices for the mixer, i only see an 'iec958-stereo-input' device and when i select that, the control center doesn't crash anymore.

[Conor Curran (cjcurran)]

Hi,

I have been testing today to try to reproduce this. I have number of duplicates which give roughly the same error, they are all slightly different hence why I have not marked as duplicate but I suspect that a singular fix 'should' resolve them all.

Could you please try something ?

Please modify /usr/share/pulseaudio/alsa-mixer/paths/analog-input.conf
comment out "required = volume" from the [Element Capture] section.

You can comment out with '#'.

Then restart and see if the bug is still present.

thanks,
Conor

[Sebastien Bacher (seb128)]

closing the bug since there was no reply