Comment 2 for bug 841080

StacktraceTop:
 pa_context_set_card_profile_by_index (c=0x7f7fbbe53530, idx=1, profile=0x7f7fbc277e60 "output:analog-stereo+input:analog-stereo", cb=0x7f7f9fe60a50 <_pa_context_set_card_profile_by_index_cb>, userdata=0x7f7fbbf9a470) at pulse/introspect.c:924
 gvc_mixer_card_change_profile (card=0x7f7fbbf9a470, profile=0x7f7fbc0c46b0 "output:analog-stereo+input:analog-stereo") at gvc-mixer-card.c:248
 g_closure_invoke (closure=0x7f7fbc038110, return_value=0x0, n_param_values=2, param_values=0x7f7fbc22a630, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.29.18/./gobject/gclosure.c:774
 signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=0x7f7fbbcc6d30, emission_return=0x0, instance_and_params=0x7f7fbc22a630) at /build/buildd/glib2.0-2.29.18/./gobject/gsignal.c:3272
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=0x7fffc3a770f8) at /build/buildd/glib2.0-2.29.18/./gobject/gsignal.c:3003