volume control will never open from the menu and will never appear on panel

[Aaron]

Binary package hint: gnome-media

the volume will however open when run from a terminal, and works perfectly.

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/gnome-volume-control
NonfreeKernelModules: nvidia
Package: gnome-media 2.25.92-0ubuntu2
ProcAttrCurrent: unconfined
ProcEnviron:
 LANG=C
 SHELL=/bin/bash
SourcePackage: gnome-media
Uname: Linux 2.6.28-10-generic x86_64

[Sebastien Bacher (seb128)]

thank you for your bug report, do you have any error in .xsession-errors when having the issue?

[Aaron (apelly)]

yes, there seem to be some interesting words in .xsession-errors. I have attached it so you can decide if any of it is relevant

[Noel J. Bergman (noeljb)]

I am also seeing the problem that the volume applet has disappeared from the Gnome panel, and will not add back. I tried doing a tail -n 0 -F .xsession-errors while adding. Nothing.

And I'm on tonight's kernel: 2.6.28-11-generic, with all other current updates.

However, I cannot reproduce that gnome-volume-control runs from the commandline. I get the following:

$ gnome-volume-control
/usr/share/themes/Human/gtk-2.0/gtkrc:82: Murrine configuration option "highlight_ratio" will be deprecated in future releases. Please use "highlight_shade" instead.
/usr/share/themes/Human/gtk-2.0/gtkrc:83: Murrine configuration option "lightborder_ratio" will be deprecated in future releases. Please use "lightborder_shade" instead.
/usr/share/themes/Human/gtk-2.0/gtkrc:194: Murrine configuration option "highlight_ratio" will be deprecated in future releases. Please use "highlight_shade" instead.

And no volume control window.

[Noel J. Bergman (noeljb)]

This is fixed now. Please verify if it is fixed for you, too.

[Aaron (apelly)]

Well, I upgraded about 20 minutes ago, and now I see the same behavior as you, Noel.

[Noel J. Bergman (noeljb)]

I upgraded again today, and now the volume control is broken again. :-( I get the same behavior that I did last night before reporting it as fixed.

[Sebastien Bacher (seb128)]

what icon do you click on exactly? could you open a command line, run ps aux | grep volume and see if the capplet is running? could you attach gdb to it to get a stracktrace?

[Noel J. Bergman (noeljb)]

Sebastian, there IS NO ICON. That's kinda the whole point. :-) And if it is last night, when I kept trying to add one, it never appeared until the transient fix, and then like 20 of them appeared, which I then cleaned up

Now here's some additional information. If I run gnome-volume-control from the command line, it starts and hangs. Attached is the output from:

  $ strace gnome-volume-control 2> gvc-strace

*BUT* ... when I first did the strace, I had a typo:

  $ strace gnome-volume-control > gvc-strace

and the control panel DID come up! I have reproduced that with:

  $ gnome-volume-control > /dev/null

Sure enough, fires right up.

Hope some of this helps.

[Aaron (apelly)]

gvc.strace1 failed
gvc.strace2 worked fine immediately afterwards

the behavior is erratic. sometimes it works, sometimes it doesn't. it doesn't appear to be related to permissions; root sees the same problems.

is this any help?

[Sebastien Bacher (seb128)]

strace are not really useful no, what you be useful is to get a gdb stacktrace of the hanging run

[Aaron (apelly)]

OK, I have googled & I still have no good idea how to help. I do have this however:

0x00007f9475fb22e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
(gdb) bt
#0 0x00007f9475fb22e9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1 0x00007f94770d313e in gst_task_join () from /usr/lib/libgstreamer-0.10.so.0
#2 0x00007f946ed6458e in ?? () from /usr/lib/gstreamer-0.10/libgstalsa.so
#3 0x00007f946ed6563e in ?? () from /usr/lib/gstreamer-0.10/libgstalsa.so
#4 0x00007f947709a1cc in gst_element_change_state () from /usr/lib/libgstreamer-0.10.so.0
#5 0x00007f947709ce7e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#6 0x0000000000409744 in ?? ()
#7 0x00007f94761ca92a in ?? () from /usr/lib/libgstaudio-0.10.so.0
#8 0x00007f94761cad24 in gst_audio_default_registry_mixer_filter () from /usr/lib/libgstaudio-0.10.so.0
#9 0x000000000040954a in ?? ()
#10 0x00007f9475c535a6 in __libc_start_main () from /lib/libc.so.6
#11 0x0000000000407e79 in ?? ()
#12 0x00007fff80b5eff8 in ?? ()
#13 0x000000000000001c in ?? ()
#14 0x0000000000000001 in ?? ()
#15 0x00007fff80b6072a in ?? ()
#16 0x0000000000000000 in ?? ()
(gdb)

from attaching gdb to gnome-volume-control while it was hung and telling it 'bt'

so is _this_ any help? i'm happy to provide more info if you need it.

[Sebastien Bacher (seb128)]

the issue seems similar to bug #576586

[Aaron (apelly)]

i can't find that bug anywhere sorry.

[Sebastien Bacher (seb128)]

that was the GNOME bug number, bug #345550 there

[Aaron (apelly)]

yes. probable duplicate.