diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
index 56df8d003494..34595c07bc13 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java
@@ -2769,6 +2769,9 @@ private void handleShow(Bundle options) {
             userActivity();
             mUpdateMonitor.setKeyguardGoingAway(false);
             mKeyguardViewControllerLazy.get().setKeyguardGoingAwayState(false);
+            System.gc();
+            System.runFinalization();
+            System.gc();
             mShowKeyguardWakeLock.release();
         }
         mKeyguardDisplayManager.show();
diff --git a/services/core/java/com/android/server/policy/keyguard/KeyguardStateMonitor.java b/services/core/java/com/android/server/policy/keyguard/KeyguardStateMonitor.java
index e1b506520eb8..a237a495bc95 100644
--- a/services/core/java/com/android/server/policy/keyguard/KeyguardStateMonitor.java
+++ b/services/core/java/com/android/server/policy/keyguard/KeyguardStateMonitor.java
@@ -97,6 +97,12 @@ public void onShowingStateChanged(boolean showing, int userId) {
                     ExtSettings.DENY_NEW_USB_TRANSIENT_ENABLE :
                     ExtSettings.DENY_NEW_USB_TRANSIENT_DISABLE);
         }
+
+        if (showing) {
+            System.gc();
+            System.runFinalization();
+            System.gc();
+        }
     }
 
     @Override // Binder interface