diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 3830751..500f7b4 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -37,6 +37,13 @@
 }
 
 flag {
+  name: "split_all_touches"
+  namespace: "input"
+  description: "Set FLAG_SPLIT_TOUCHES to true for all windows, regardless of what they specify. This is essentially deprecating this flag by forcefully enabling the split functionality"
+  bug: "239934827"
+}
+
+flag {
   name: "a11y_crash_on_inconsistent_event_stream"
   namespace: "accessibility"
   description: "Brings back fatal logging for inconsistent event streams originating from accessibility."
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 4076817..af4a04d 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -2448,12 +2448,19 @@
         if (isDown) {
             targets += findOutsideTargetsLocked(displayId, newTouchedWindowHandle, pointer.id);
         }
+        LOG_IF(INFO, newTouchedWindowHandle == nullptr)
+                << "No new touched window at (" << std::format("{:.1f}, {:.1f}", x, y)
+                << ") in display " << displayId;
         // Handle the case where we did not find a window.
-        if (newTouchedWindowHandle == nullptr) {
-            ALOGD("No new touched window at (%.1f, %.1f) in display %s", x, y,
-                  displayId.toString().c_str());
-            // Try to assign the pointer to the first foreground window we find, if there is one.
-            newTouchedWindowHandle = tempTouchState.getFirstForegroundWindowHandle(entry.deviceId);
+        if (!input_flags::split_all_touches()) {
+            // If we are force splitting all touches, then touches outside of the window should
+            // be dropped, even if this device already has pointers down in another window.
+            if (newTouchedWindowHandle == nullptr) {
+                // Try to assign the pointer to the first foreground window we find, if there is
+                // one.
+                newTouchedWindowHandle =
+                        tempTouchState.getFirstForegroundWindowHandle(entry.deviceId);
+            }
         }
 
         // Verify targeted injection.
@@ -7007,6 +7014,13 @@
     for (const auto& info : update.windowInfos) {
         handlesPerDisplay.emplace(info.displayId, std::vector<sp<WindowInfoHandle>>());
         handlesPerDisplay[info.displayId].push_back(sp<WindowInfoHandle>::make(info));
+        if (input_flags::split_all_touches()) {
+            handlesPerDisplay[info.displayId]
+                    .back()
+                    ->editInfo()
+                    ->setInputConfig(android::gui::WindowInfo::InputConfig::PREVENT_SPLITTING,
+                                     false);
+        }
     }
 
     { // acquire lock
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index c70afd6..e505850 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -4168,6 +4168,7 @@
  * the event routing because the first window prevents splitting.
  */
 TEST_F(InputDispatcherTest, SplitTouchesSendCorrectActionDownTimeForNewWindow) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window1 =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
@@ -4225,6 +4226,7 @@
  * (and the touch occurred outside of the bounds of window1).
  */
 TEST_F(InputDispatcherTest, SplitTouchesDropsEventForNonSplittableSecondWindow) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window1 =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Window1", DISPLAY_ID);
@@ -4600,6 +4602,7 @@
  * This test attempts to reproduce a crash in the dispatcher.
  */
 TEST_P(SpyThatPreventsSplittingWithApplicationFixture, SpyThatPreventsSplittingWithApplication) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
 
     sp<FakeWindowHandle> spyWindow = sp<FakeWindowHandle>::make(application, mDispatcher, "Spy",
@@ -5583,6 +5586,7 @@
 }
 
 TEST_F(InputDispatcherTest, NonSplitTouchableWindowReceivesMultiTouch) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Fake Window",
@@ -5628,6 +5632,7 @@
  * "incomplete" gestures.
  */
 TEST_F(InputDispatcherTest, SplittableAndNonSplittableWindows) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> leftWindow =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Left splittable Window",
@@ -5665,6 +5670,7 @@
  * This test attempts to reproduce a crash.
  */
 TEST_F(InputDispatcherTest, MultiDeviceTwoWindowsPreventSplitting) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> leftWindow =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Left window (prevent splitting)",
@@ -8411,6 +8417,7 @@
  * the previous window should receive this event and not be dropped.
  */
 TEST_F(InputDispatcherMultiDeviceTest, SingleDevicePointerDownEventRetentionWithoutWindowTarget) {
+    SCOPED_FLAG_OVERRIDE(split_all_touches, false);
     std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
     sp<FakeWindowHandle> window = sp<FakeWindowHandle>::make(application, mDispatcher, "Window",
                                                              ui::LogicalDisplayId::DEFAULT);