Comment 2 for bug 804924

StacktraceTop:
 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:140
 pa_threaded_mainloop_wait () from /usr/lib/libpulse.so.0
 pulse_driver_play (c=0x18682e0, id=4294967295, proplist=0x1864c20, cb=<value optimized out>, userdata=<value optimized out>) at pulse.c:1082
 ca_context_play_full (c=0x18682e0, id=0, p=0x1864c20, cb=0, userdata=0x0) at common.c:522
 play_sound_effect (user_data=0x183c9c0) at gnome-screenshot.c:800