.
Thread 1 (process 7360):
#0  0x00007f0b67c2769e in get_monitor (screen=0x7fff71bdca40, monitor_num=28480688)
    at /build/buildd/gtk+2.0-2.13.6/gdk/x11/gdkscreen-x11.c:368
	__PRETTY_FUNCTION__ = "get_monitor"
#1  0x0000048001b33ac0 in ?? ()
#2  0x0000000000000000 in ?? ()