diff -Nru gnome-settings-daemon-3.4.2/debian/changelog gnome-settings-daemon-3.4.2/debian/changelog
--- gnome-settings-daemon-3.4.2/debian/changelog	2012-06-12 04:21:43.000000000 +0800
+++ gnome-settings-daemon-3.4.2/debian/changelog	2012-06-14 11:31:14.000000000 +0800
@@ -1,3 +1,12 @@
+gnome-settings-daemon (3.4.2-0ubuntu5) quantal; urgency=low
+
+  * debian/patches/git-mask-out-virtual-modifiers.patch
+    - patch from upstream git, fix the grabbing issue of the 
+      keyboard shortcut with virtual (Super, Hyper, Meta) modifier.
+      (lp: #950160)
+
+ -- Keng-Yu Lin <kengyu@ubuntu.com>  Thu, 14 Jun 2012 11:25:51 +0800
+
 gnome-settings-daemon (3.4.2-0ubuntu4) quantal; urgency=low
 
   * debian/patches/62_unity_disable_gsd_printer.patch: gracefully exit the
diff -Nru gnome-settings-daemon-3.4.2/debian/patches/git-mask-out-virtual-modifiers.patch gnome-settings-daemon-3.4.2/debian/patches/git-mask-out-virtual-modifiers.patch
--- gnome-settings-daemon-3.4.2/debian/patches/git-mask-out-virtual-modifiers.patch	1970-01-01 08:00:00.000000000 +0800
+++ gnome-settings-daemon-3.4.2/debian/patches/git-mask-out-virtual-modifiers.patch	2012-06-14 11:24:52.000000000 +0800
@@ -0,0 +1,47 @@
+From 53cbbc00df3884bc3ca87e2818a08ba3ba2fabac Mon Sep 17 00:00:00 2001
+From: Keng-Yu Lin <kengyu@ubuntu.com>
+Date: Tue, 22 May 2012 15:11:26 +0800
+Subject: [PATCH] common: mask out virtual modifiers in key grabbing code
+
+gdk_keymap_map_virtual_modifiers converts all the virtual
+modifiers in the state mask (Super, Hyper, Meta, etc) of a
+key event to the real modifiers they're mapped to. This
+call is needed, because XGrabKey and friends only work
+with real modifiers (Mod1, Mod2, ...).
+
+Unforunately, gdk_keymap_map_virtual_modifiers doesn't mask
+out the virtual modifers, it merely adds in the associated
+real ones.
+
+This commit does the masking immediately following the call,
+so that virtual modifier don't ultimately get passed to X
+when setting up the key grabs.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=676300
+---
+ plugins/common/gsd-keygrab.c |    2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/plugins/common/gsd-keygrab.c b/plugins/common/gsd-keygrab.c
+index f8432cd..bb85b87 100644
+--- a/plugins/common/gsd-keygrab.c
++++ b/plugins/common/gsd-keygrab.c
+@@ -153,6 +153,7 @@ grab_key_unsafe (Key                 *key,
+         /* XGrabKey requires real modifiers, not virtual ones */
+         modifiers = key->state;
+         gdk_keymap_map_virtual_modifiers (gdk_keymap_get_default (), &modifiers);
++        modifiers &= ~(GDK_META_MASK | GDK_SUPER_MASK | GDK_HYPER_MASK);
+ 
+         /* If key doesn't have a usable modifier, we don't want
+          * to grab it, since the user might lose a useful key.
+@@ -324,6 +325,7 @@ match_xi2_key (Key *key, XIDeviceEvent *event)
+ 		 * the XEvent will be using the real modifier, so translate those */
+ 		mask = key->state;
+ 		gdk_keymap_map_virtual_modifiers (gdk_keymap_get_default (), &mask);
++                mask &= ~(GDK_META_MASK | GDK_SUPER_MASK | GDK_HYPER_MASK);
+ 
+ 		gdk_keyval_convert_case (keyval, &lower, &upper);
+ 
+-- 
+1.7.9.5
+
diff -Nru gnome-settings-daemon-3.4.2/debian/patches/series gnome-settings-daemon-3.4.2/debian/patches/series
--- gnome-settings-daemon-3.4.2/debian/patches/series	2012-06-12 04:21:43.000000000 +0800
+++ gnome-settings-daemon-3.4.2/debian/patches/series	2012-06-14 11:25:37.000000000 +0800
@@ -27,3 +27,4 @@
 power-check-null-devices.patch
 power-ignore-bad-dbus-requests.patch
 xsettings_signal_handling.patch
+git-mask-out-virtual-modifiers.patch