diff --git a/src/widgets/fullbackgroundwidget.cpp b/src/widgets/fullbackgroundwidget.cpp
index 7cfee1e..c71510e 100644
--- a/src/widgets/fullbackgroundwidget.cpp
+++ b/src/widgets/fullbackgroundwidget.cpp
@@ -133,9 +133,6 @@ void FullBackgroundWidget::initUI()
     }
 
     setWindowFlags(Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint);
-    QTimer::singleShot(100, this, [=]() {
-        WindowManager::setWindowLayer(this->windowHandle(), WindowLayer::ScreenLock);
-    });
 
     // 登录模式下监听屏幕插拔
     if (isGreeterMode()) {
@@ -170,6 +167,9 @@ bool FullBackgroundWidget::eventFilter(QObject *obj, QEvent *event)
         }
         QTimer::singleShot(500, this, SLOT(setLockState()));
         // QTimer::singleShot(200,this,SLOT(killWindow()));
+    } else if (event->type() == QEvent::Show || event->type() == QEvent::UpdateRequest) {
+        WindowManager::setWindowLayer(this->windowHandle(), WindowLayer::ScreenLock);
+        //qDebug()<<"Set window layer ScreenLock";
     }
     return QWidget::eventFilter(obj, event);
 }
@@ -637,7 +637,6 @@ void FullBackgroundWidget::showEvent(QShowEvent *event)
     if (QX11Info::isPlatformX11())
         tryGrabKeyboard();
     QTimer::singleShot(100, this, [=]() {
-        WindowManager::setWindowLayer(this->windowHandle(), WindowLayer::ScreenLock);
         m_lockWidget->updateFont();
         m_lockWidget->updateFontSize();
     });