[sound-nua] gnome-control-center crashed with SIGSEGV in gtk_tree_model_get_valist()

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #930133, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

I can see the related bug.. .https://bugs.launchpad.net/bugs/930133
But i'm still waiting 4 news...

This is what I get from terminal trying to open the gnome-control-center.

jrzabott@junior-notebook:~$ !1072
gnome-control-center

 get server info

 update server
 2 profiles supported on port Analog Output

 2 profiles supported on port Microphone

 Single profile, 1, key input:analog-stereo against value input:analog-stereo for device Microphone

 Found an input profile - storing key output:analog-stereo+input:analog-stereo against value input:analog-stereo for device Microphone

 device->priv->disable_profile_swapping = 1

 Profile population
 FOR DEVICE Microphone
 key tmp against
 profile input:analog-stereo

 create_ui_device_from_port, direction 0
 description Microphone
 origin Built-in Audio
 port available 0

 Single profile, 0, key output:analog-stereo against value output:analog-stereo for device Analog Output

 Found an output profile - storing key output:analog-stereo+input:analog-stereo against value output:analog-stereo for device Analog Output

 device->priv->disable_profile_swapping = 1

 Profile population
 FOR DEVICE Analog Output
 key tmp against
 profile output:analog-stereo

 Add output ui entry with id : 2

 create_ui_device_from_port, direction 1
 description Analog Output
 origin Built-in Audio
 port available 1

 update sink - is new

 Match device with stream
 We have a match with description : Analog Output
 origin : Built-in Audio
 cached already with device id 2,
 => set stream id to 1

 lookup-device-from-stream found device
 device description Analog Output
 device port = analog-output
 device stream id 1
 AND
 stream port = analog-output stream id 1 and stream description Built-in Audio Analog Stereo
active_sink change

 active output update - device id = 2

 on_output_selection_changed - active 1

 active_output_update Analog Output

 Match device with stream
 We have a match with description : Microphone
 origin : Built-in Audio
 cached already with device id 1,
 => set stream id to 2

 lookup-device-from-stream found device
 device description Microphone
 device port = analog-input-microphone
 device stream id 2
 AND
 stream port = analog-input-microphone stream id 2 and stream description Built-in Audio Analog Stereo

 active_input_update Microphone

Gtk-CRITICAL **: gtk_list_store_get_value: assertion `iter_is_valid (iter, list_store)' failed

GLib-GObject-WARNING **: /build/buildd/glib2.0-2.31.16/./gobject/gtype.c:4205: type id `0' is invalid

GLib-GObject-WARNING **: can't peek value table for type `<invalid>' which is not currently referenced
Segmentation fault (core dumped)

=============================================

Once time or another, the 'sound' from gnome control center open... and than... I have not tab called Hardware, and i'm no able to configure anything, and stills with no sound.

I'm waiting 4 ya guys... :D

Status changed to 'Confirmed' because the bug affects multiple users.

Recent updated... Problem persists... GMT-3 23:30 - 02/15/2012.

problem persists after all (and I apreciate and thanks a lot) bunch of updates of pulse and gnome-control-center.

I've found a way to 'handle' the bug, and make changes as I wished, and have my sound back.

1 - To access the control-center.

# sudo gnome-control-center

   There you make the changes, and your user stills affected.

2 - To have the sound back...

# sudo apt-get install dkms

#sudo reboot

After reboot the sound must be back.

This worked... Hope help the other eleven people with the same problem.

A possibly easier workaround (from my duplicate bug #932079): Use pavucontrol for switching between outputs.
Oh and @JrZabott: I removed the verification-needed tag, that tag has a very specific meaning for stable release updates, see https://wiki.ubuntu.com/Bugs/Tags

Didn't worked for me... and i'm tired to reporting diferent bugs anytime. LOL..

Thanks Marcel, i didn't knew that, i 'll read about tags in the 'wiki-tags'. :D

I still think that my workaround is more simple ... than install a 'strange' package, I used solutions entirelly suported, like dkms, and recommended for Intel HDA to adjust the kernel to my audio device (if i'm right about what it does), and sudo + control center, that I think it is not a big deal... but whatever it is working for all of us, lets enjoy our favorite Youtube stuff, and MP3 were we can. LOL...

Thanks for the workaround. =)

This bug was fixed in the package gnome-control-center - 1:3.3.90-0ubuntu1

---------------
gnome-control-center (1:3.3.90-0ubuntu1) precise; urgency=low

  * New upstream version:
    - gnome-control-center crashed with SIGSEGV in supply_levels_draw_cb()
      (lp: #903680)
  * Refreshed patches for the new version
  * debian/control.in:
    - updated g-s-d requirement
  * debian/patches/91_configure_cheese.patch:
    - dropped, the fix is in the new version
  * debian/source_gnome-control-center.py:
    - don't update the title several times, tag as well

  [ Ken VanDine ]
  * debian/patches/96_sound_nua_panel.patch
    - sound-nua: fixed crashers in gtk_tree_model_get_valist()
      (LP: #931708) and (LP: #932446)
    - sound-nua: fixed a failure in profile selection
 -- Sebastien Bacher <email address hidden> Tue, 21 Feb 2012 22:23:29 +0100

Ok... The Gnome controle center is OK, but now, control-center doen't show my hardware... the list is empty.

But when I do:

sudo gnome-control-center, select sound, everything runs OK: sound device is properly nominated, and I'm abble to control everything there. :D

And I liked a lot of the new design of control center. =)

@JrZabott, did it stop segfaulting then? Could you open a new bug about that with the output on the command line you get? It seems like pulseaudio is not working correctly for you...

Yes, you're right.

Ok I'll.

Bug #939161