[mutter] display: Ignore XSyncAlarmNotify in meta_spew_event

[Jasper St. Pierre <jstpierre src gnome org>]

commit 57bc974a579f3f1a382a27ecb549a5543cd6f360
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sat Jun 29 20:07:28 2013 -0400

    display: Ignore XSyncAlarmNotify in meta_spew_event
    
    https://bugzilla.gnome.org/show_bug.cgi?id=703970

 src/core/display.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/core/display.c b/src/core/display.c
index 8886089..b8a7de5 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -3790,6 +3790,9 @@ meta_spew_event (MetaDisplay *display,
   if (event->type == (display->damage_event_base + XDamageNotify))
     return;
 
+  if (event->type == (display->xsync_event_base + XSyncAlarmNotify))
+    return;
+
   input_event = get_input_event (display, event);
 
   if (input_event)