Comment 2 for bug 10540

Howto select recording source ? That's a very good question. I posted it on
ubuntu-devel, but nobody has answered.

I just plugged my USB headset in and it took control over all audio. I assume
that it is my USB headset that is the recording source.

Here is the backtrace:

Program received signal SIGINT, Interrupt.
[Switching to Thread 1090327360 (LWP 5548)]
0xffffe410 in __kernel_vsyscall ()
(gdb) bt
#0 0xffffe410 in __kernel_vsyscall ()
#1 0x40d1844a in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2 0x40d0d81a in ?? () from /usr/lib/libgthread-2.0.so.0
#3 0x0821a140 in ?? ()
#4 0x08219cd0 in ?? ()
#5 0xbfffde08 in ?? ()
#6 0x40054e69 in gst_debug_log () from /usr/lib/libgstreamer-0.8.so.1
#7 0x40077041 in gst_thread_get_current () from /usr/lib/libgstreamer-0.8.so.1
#8 0x4007737b in gst_thread_get_current () from /usr/lib/libgstreamer-0.8.so.1
#9 0x4004dfa6 in gst_element_set_state () from /usr/lib/libgstreamer-0.8.so.1
#10 0x4003faf9 in gst_bin_set_state () from /usr/lib/libgstreamer-0.8.so.1
#11 0x4004dc54 in gst_element_set_state () from /usr/lib/libgstreamer-0.8.so.1
#12 0x0804e03c in gsr_window_close ()
#13 0x4025a461 in bonobo_socket_add_id () from /usr/lib/libbonoboui-2.so.0
#14 0x40cb46e6 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#15 0x40bd9fe0 in bonobo_closure_invoke_va_list ()
   from /usr/lib/libbonobo-2.so.0
#16 0x40bda247 in bonobo_closure_invoke () from /usr/lib/libbonobo-2.so.0
#17 0xbfffe170 in ?? ()
#18 0xbfffe1cc in ?? ()
#19 0x402dbe7a in XSetClipMask () from /usr/X11R6/lib/libX11.so.6
Previous frame inner to this frame (corrupt stack?)