diff --git a/debian/kylin-nm.postinst b/debian/kylin-nm.postinst
old mode 100644
new mode 100755
index 3a4fc83b..e99563ba
--- a/debian/kylin-nm.postinst
+++ b/debian/kylin-nm.postinst
@@ -10,5 +10,5 @@ fi
 
 echo "kylin nm set cap success"
 
-exit(0)
+exit 0
 
diff --git a/src/frontend/netdetails/netdetail.cpp b/src/frontend/netdetails/netdetail.cpp
index 7b38eb3b..3d367b24 100644
--- a/src/frontend/netdetails/netdetail.cpp
+++ b/src/frontend/netdetails/netdetail.cpp
@@ -20,6 +20,24 @@
 
 //extern void qt_blurImage(QImage &blurImage, qreal radius, bool quality, int transposed);
 
+void NetDetail::showDesktopNotify(const QString &message)
+{
+    QDBusInterface iface("org.freedesktop.Notifications",
+                         "/org/freedesktop/Notifications",
+                         "org.freedesktop.Notifications",
+                         QDBusConnection::sessionBus());
+    QList<QVariant> args;
+    args<<(tr("Kylin NM"))
+       <<((unsigned int) 0)
+       <<QString("/usr/share/icons/ukui-icon-theme-default/24x24/devices/gnome-dev-ethernet.png")
+       <<tr("kylin network desktop message") //显示的是什么类型的信息
+       <<message //显示的具体信息
+       <<QStringList()
+       <<QVariantMap()
+       <<(int)-1;
+    iface.callWithArgumentList(QDBus::AutoDetect,"Notify",args);
+}
+
 NetDetail::NetDetail(QString interface, QString name, QString uuid, bool isActive, bool isWlan, bool isCreateNet, QWidget *parent)
     :m_deviceName(interface),
      m_name(name),
@@ -571,6 +589,7 @@ void NetDetail::setConfirmEnable()
 
 bool NetDetail::checkIpv4Conflict(QString ipv4Address)
 {
+    showDesktopNotify(tr("start check ipv4 address conflict"));
     bool isConflict = false;
     KyIpv4Arping* ipv4Arping = new KyIpv4Arping(m_deviceName, ipv4Address);
 
@@ -587,6 +606,7 @@ bool NetDetail::checkIpv4Conflict(QString ipv4Address)
 
 bool NetDetail::checkIpv6Conflict(QString ipv6address)
 {
+    showDesktopNotify(tr("start check ipv6 address conflict"));
     bool isConflict = false;
     KyIpv6Arping* ipv46rping = new KyIpv6Arping(m_deviceName, ipv6address);
 
@@ -632,7 +652,7 @@ bool NetDetail::createWiredConnect()
     if (connetSetting.m_ipv4ConfigIpType != CONFIG_IP_DHCP) {
         if (checkIpv4Conflict(connetSetting.m_ipv4Address.at(0).ip().toString())) {
             qDebug() << "ipv4 conflict";
-            //todo desktop notify
+            showDesktopNotify(tr("ipv4 address conflict!"));
             return false;
         }
     }
@@ -669,7 +689,7 @@ bool NetDetail::createWirelessConnect()
     if (ipv4Change && connetSetting.m_ipv4ConfigIpType == CONFIG_IP_MANUAL) {
         if (checkIpv4Conflict(connetSetting.m_ipv4Address.at(0).ip().toString())) {
             qDebug() << "ipv4 conflict";
-            //todo desktop notify
+            showDesktopNotify(tr("ipv4 address conflict!"));
             return false;
         }
     }
@@ -677,7 +697,7 @@ bool NetDetail::createWirelessConnect()
     if (ipv6Change && connetSetting.m_ipv6ConfigIpType == CONFIG_IP_MANUAL) {
         if (checkIpv6Conflict(connetSetting.m_ipv6Address.at(0).ip().toString())) {
             qDebug() << "ipv6 conflict";
-            //todo desktop notify
+            showDesktopNotify(tr("ipv6 address conflict!"));
             return false;
         }
     }
@@ -747,7 +767,7 @@ bool NetDetail::updateConnect()
     if (ipv4Change && connetSetting.m_ipv4ConfigIpType == CONFIG_IP_MANUAL) {
         if (checkIpv4Conflict(connetSetting.m_ipv4Address.at(0).ip().toString())) {
             qDebug() << "ipv4 conflict";
-            //todo desktop notify
+            showDesktopNotify(tr("ipv4 address conflict!"));
             return false;
         }
     }
@@ -755,7 +775,7 @@ bool NetDetail::updateConnect()
     if (ipv6Change && connetSetting.m_ipv6ConfigIpType == CONFIG_IP_MANUAL) {
         if (checkIpv6Conflict(connetSetting.m_ipv6Address.at(0).ip().toString())) {
             qDebug() << "ipv6 conflict";
-            //todo desktop notify
+            showDesktopNotify(tr("ipv6 address conflict!"));
             return false;
         }
     }
diff --git a/src/frontend/netdetails/netdetail.h b/src/frontend/netdetails/netdetail.h
index 990a783d..35c469e4 100644
--- a/src/frontend/netdetails/netdetail.h
+++ b/src/frontend/netdetails/netdetail.h
@@ -69,6 +69,8 @@ private:
     bool createWiredConnect();
     bool createWirelessConnect();
     bool updateConnect();
+
+    void showDesktopNotify(const QString &message);
 private:
     KyNetworkDeviceResourse *m_netDeviceResource = nullptr;
     KyConnectOperation* m_connectOperation = nullptr;
diff --git a/src/frontend/tab-pages/lanpage.cpp b/src/frontend/tab-pages/lanpage.cpp
index cfb57b5b..0fac9ce6 100644
--- a/src/frontend/tab-pages/lanpage.cpp
+++ b/src/frontend/tab-pages/lanpage.cpp
@@ -189,10 +189,6 @@ void LanPage::initDeviceCombox()
     //TODO 获取设备列表，单设备时隐藏下拉框，多设备时添加到下拉框;m_devList记录插入的所有设备，deviceMap记录设备状态
     QMap<QString, bool> deviceMap;
 
-    m_deviceComboBox->clear();
-    m_devList.clear();
-    enableDevice.clear();
-
     if (!m_switchGsettings) {
         qDebug() << "[LanPage]:m_switchGsettings is null" << Q_FUNC_INFO << __LINE__;
         return;