diff -Nru x11-utils-7.6+4ubuntu0.1/debian/changelog x11-utils-7.6+4ubuntu0.2/debian/changelog
--- x11-utils-7.6+4ubuntu0.1/debian/changelog	2012-08-06 23:06:10.000000000 +0000
+++ x11-utils-7.6+4ubuntu0.2/debian/changelog	2015-06-11 07:47:15.000000000 +0000
@@ -1,3 +1,11 @@
+x11-utils (7.6+4ubuntu0.2) precise-proposed; urgency=medium
+
+  * Add 101_xprop_bad_format_character_utf8_string.patch: Fix xprop
+    bad format character error whn using UTF-8 strings.
+    (LP: #1463663)
+
+ -- Alberto Milone <alberto.milone@canonical.com>  Thu, 11 Jun 2015 09:45:25 +0200
+
 x11-utils (7.6+4ubuntu0.1) precise-proposed; urgency=low
 
   * Add 100-xwininfo-bad-screen.patch: Fix wininfo segfault when called
diff -Nru x11-utils-7.6+4ubuntu0.1/debian/patches/101_xprop_bad_format_character_utf8_string.patch x11-utils-7.6+4ubuntu0.2/debian/patches/101_xprop_bad_format_character_utf8_string.patch
--- x11-utils-7.6+4ubuntu0.1/debian/patches/101_xprop_bad_format_character_utf8_string.patch	1970-01-01 00:00:00.000000000 +0000
+++ x11-utils-7.6+4ubuntu0.2/debian/patches/101_xprop_bad_format_character_utf8_string.patch	2015-06-11 07:41:10.000000000 +0000
@@ -0,0 +1,34 @@
+From b9d699079f54f1665a5460c2212706e2d2af8a90 Mon Sep 17 00:00:00 2001
+From: lolilolicon <lolilolicon@gmail.com>
+Date: Tue, 10 Jan 2012 23:39:04 -0500
+Subject: [PATCH 1/1] Enable setting property of type UTF8_STRING.
+
+Fix "bad format character: u" error for format '8u', e.g.:
+    xprop -root -f _NET_WM_NAME 8u -set _NET_WM_NAME LG3D
+
+Signed-off-by: James Cloos <cloos@jhcloos.com>
+---
+ xprop/xprop.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/xprop/xprop.c b/xprop/xprop.c
+index 4c4c702..2dbacb5 100644
+--- a/xprop/xprop.c
++++ b/xprop/xprop.c
+@@ -1629,6 +1629,13 @@ Set_Property (Display *dpy, Window w, const char *propname, const char *value)
+ 	data = (unsigned char *) value;
+ 	nelements = strlen(value);
+ 	break;
++      case 'u':
++	if (size != 8)
++	    Fatal_Error("can't use format character 'u' with any size except 8.");
++	type = XInternAtom(dpy, "UTF8_STRING", False);
++	data = (unsigned char *) value;
++	nelements = strlen(value);
++	break;
+       case 't': {
+ 	XTextProperty textprop;
+ 	if (size != 8)
+-- 
+1.9.1
+
diff -Nru x11-utils-7.6+4ubuntu0.1/debian/patches/series x11-utils-7.6+4ubuntu0.2/debian/patches/series
--- x11-utils-7.6+4ubuntu0.1/debian/patches/series	2012-08-06 23:05:27.000000000 +0000
+++ x11-utils-7.6+4ubuntu0.2/debian/patches/series	2015-06-11 07:45:00.000000000 +0000
@@ -1 +1,2 @@
 100-xwininfo-bad-screen.patch
+101_xprop_bad_format_character_utf8_string.patch