diff --git a/hplip-notification-exception.patch b/hplip-notification-exception.patch
new file mode 100644
index 0000000..f0a7fb8
--- /dev/null
+++ b/hplip-notification-exception.patch
@@ -0,0 +1,23 @@
+diff -up hplip-3.10.9/ui4/systemtray.py.notification-exception hplip-3.10.9/ui4/systemtray.py
+--- hplip-3.10.9/ui4/systemtray.py.notification-exception	2011-01-05 10:45:57.000000000 +0100
++++ hplip-3.10.9/ui4/systemtray.py	2011-01-05 12:34:18.000000000 +0100
+@@ -27,6 +27,7 @@ import os
+ import signal
+ import os.path
+ import time
++import gobject
+ 
+ 
+ # Local
+@@ -662,7 +663,10 @@ class SystemTrayApp(QApplication):
+                                     else:
+                                         n.set_timeout(TRAY_MESSAGE_DELAY)
+ 
+-                                    n.show()
++                                    try:
++                                        n.show()
++                                    except gobject.GError:
++                                        log.error("Failed to show notification!")
+ 
+                                 else: # Use "standard" message bubbles
+                                     icon = ERROR_STATE_TO_ICON.get(error_state, QSystemTrayIcon.Information)
diff --git a/hplip.spec b/hplip.spec
index ae9ed2d..669c8c9 100644
--- a/hplip.spec
+++ b/hplip.spec
@@ -1,7 +1,7 @@
 Summary: HP Linux Imaging and Printing Project
 Name: hplip
 Version: 3.10.9
-Release: 9%{?dist}
+Release: 10%{?dist}
 License: GPLv2+ and MIT
 Group: System Environment/Daemons
 Conflicts: system-config-printer < 0.6.132
@@ -44,6 +44,7 @@ Patch30: hplip-dbus-exception.patch
 Patch31: hplip-hpaio-segfault.patch
 Patch32: hplip-newline.patch
 Patch33: hplip-dbus-threads.patch
+Patch34: hplip-notification-exception.patch
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -285,6 +286,9 @@ done
 # Enable D-Bus threading (and require pygobject2) (bug #600932).
 %patch33 -p1 -b .dbus-threads
 
+# Catch GError exception when notification showing failed (bug #665577).
+%patch34 -p1 -b .notification-exception
+
 sed -i.duplex-constraints \
     -e 's,\(UIConstraints.* \*Duplex\),//\1,' \
     prnt/drv/hpcups.drv.in
@@ -511,6 +515,9 @@ fi
 %postun libs -p /sbin/ldconfig
 
 %changelog
+* Wed Jan 05 2011 Jiri Popelka <jpopelka@redhat.com> 3.10.9-10
+- Catch GError exception when notification showing failed (bug #665577).
+
 * Wed Dec 15 2010 Tim Waugh <twaugh@redhat.com> - 3.10.9-9
 - Enable D-Bus threading (and require pygobject2) (bug #600932).
 - Fixed incorrect signal name in setup dialog (bug #653626).