diff --git a/packages/SystemUI/src/com/android/systemui/shade/NotificationPanelViewController.java b/packages/SystemUI/src/com/android/systemui/shade/NotificationPanelViewController.java
index c3987110b75a2..44436b912724d 100644
--- a/packages/SystemUI/src/com/android/systemui/shade/NotificationPanelViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/shade/NotificationPanelViewController.java
@@ -3569,6 +3569,7 @@ public final class NotificationPanelViewController implements ShadeSurface, Dump
     }
 
     private void endMotionEvent(MotionEvent event, float x, float y, boolean forceCancel) {
+        mShadeLog.logEndMotionEvent("endMotionEvent called", forceCancel, false);
         mTrackingPointer = -1;
         mAmbientState.setSwipingUp(false);
         if ((mTracking && mTouchSlopExceeded) || Math.abs(x - mInitialExpandX) > mTouchSlop
@@ -3590,15 +3591,19 @@ public final class NotificationPanelViewController implements ShadeSurface, Dump
             } else if (event.getActionMasked() == MotionEvent.ACTION_CANCEL || forceCancel) {
                 if (onKeyguard) {
                     expand = true;
+                    mShadeLog.logEndMotionEvent("endMotionEvent: cancel while on keyguard",
+                            forceCancel, expand);
                 } else if (mCentralSurfaces.isBouncerShowingOverDream()) {
                     expand = false;
                 } else {
                     // If we get a cancel, put the shade back to the state it was in when the
                     // gesture started
                     expand = !mPanelClosedOnDown;
+                    mShadeLog.logEndMotionEvent("endMotionEvent: cancel", forceCancel, expand);
                 }
             } else {
                 expand = flingExpands(vel, vectorVel, x, y);
+                mShadeLog.logEndMotionEvent("endMotionEvent: flingExpands", forceCancel, expand);
             }
 
             mDozeLog.traceFling(
@@ -4735,6 +4740,8 @@ public final class NotificationPanelViewController implements ShadeSurface, Dump
                     mTouchSlopExceeded = mTouchSlopExceededBeforeDown;
                     mMotionAborted = false;
                     mPanelClosedOnDown = isFullyCollapsed();
+                    mShadeLog.logPanelClosedOnDown("intercept down touch", mPanelClosedOnDown,
+                            mExpandedFraction);
                     mCollapsedAndHeadsUpOnDown = false;
                     mHasLayoutedSinceDown = false;
                     mUpdateFlingOnLayout = false;
@@ -4952,6 +4959,8 @@ public final class NotificationPanelViewController implements ShadeSurface, Dump
                     startExpandMotion(x, y, false /* startTracking */, mExpandedHeight);
                     mMinExpandHeight = 0.0f;
                     mPanelClosedOnDown = isFullyCollapsed();
+                    mShadeLog.logPanelClosedOnDown("handle down touch", mPanelClosedOnDown,
+                            mExpandedFraction);
                     mHasLayoutedSinceDown = false;
                     mUpdateFlingOnLayout = false;
                     mMotionAborted = false;
diff --git a/packages/SystemUI/src/com/android/systemui/shade/ShadeLogger.kt b/packages/SystemUI/src/com/android/systemui/shade/ShadeLogger.kt
index 2da8d5f4d9210..4fdd6e19cc4c4 100644
--- a/packages/SystemUI/src/com/android/systemui/shade/ShadeLogger.kt
+++ b/packages/SystemUI/src/com/android/systemui/shade/ShadeLogger.kt
@@ -90,7 +90,7 @@ class ShadeLogger @Inject constructor(@ShadeLog private val buffer: LogBuffer) {
                 double1 = event.y.toDouble()
             },
             {
-                "$str1\neventTime=$long1,downTime=$long2,y=$double1,action=$int1,class=$int2"
+                "$str1: eventTime=$long1,downTime=$long2,y=$double1,action=$int1,class=$int2"
             }
         )
     }
@@ -280,6 +280,42 @@ class ShadeLogger @Inject constructor(@ShadeLog private val buffer: LogBuffer) {
         )
     }
 
+    fun logEndMotionEvent(
+        msg: String,
+        forceCancel: Boolean,
+        expand: Boolean,
+    )
+    {
+        buffer.log(
+            TAG,
+            LogLevel.VERBOSE,
+            {
+                str1 = msg
+                bool1 = forceCancel
+                bool2 = expand
+            },
+            { "$str1; force=$bool1; expand=$bool2" }
+        )
+    }
+
+    fun logPanelClosedOnDown(
+        msg: String,
+        panelClosedOnDown: Boolean,
+        expandFraction: Float,
+    )
+    {
+        buffer.log(
+            TAG,
+            LogLevel.VERBOSE,
+            {
+                str1 = msg
+                bool1 = panelClosedOnDown
+                double1 = expandFraction.toDouble()
+            },
+            { "$str1; mPanelClosedOnDown=$bool1; mExpandedFraction=$double1" }
+        )
+    }
+
     fun flingQs(flingType: Int, isClick: Boolean) {
         buffer.log(
             TAG,