diff --git a/src/corelib/animation/qpauseanimation.cpp b/src/corelib/animation/qpauseanimation.cpp
index 31802f094d..c2599da692 100644
--- a/src/corelib/animation/qpauseanimation.cpp
+++ b/src/corelib/animation/qpauseanimation.cpp
@@ -130,6 +130,7 @@ void QPauseAnimation::setDuration(int msecs)
     }
     Q_D(QPauseAnimation);
     d->duration.setValue(msecs);
+    d->duration.notify();
 }
 
 QBindable<int> QPauseAnimation::bindableDuration()
diff --git a/src/corelib/kernel/qproperty_p.h b/src/corelib/kernel/qproperty_p.h
index d1f4c5acba..a355a7faea 100644
--- a/src/corelib/kernel/qproperty_p.h
+++ b/src/corelib/kernel/qproperty_p.h
@@ -467,12 +467,7 @@ public:
         const bool inWrapper = inBindingWrapper(storage);
         if (bd && !inWrapper)
             bd->removeBinding();
-        if constexpr (QTypeTraits::has_operator_equal_v<T>)
-            if (this->val == t)
-                return;
         this->val = t;
-        if (!inWrapper)
-            notify(bd);
     }
 
     QPropertyBinding<T> setBinding(const QPropertyBinding<T> &newBinding)
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp
index 49c57cb6ee..0946e1af48 100644
--- a/src/corelib/kernel/qtimer.cpp
+++ b/src/corelib/kernel/qtimer.cpp
@@ -257,10 +257,9 @@ void QTimer::start()
 void QTimer::start(int msec)
 {
     Q_D(QTimer);
-    d->inter.removeBindingUnlessInWrapper();
-    d->inter.setValueBypassingBindings(msec);
+    d->inter.setValue(msec);
     start();
-    d->inter.markDirty();
+    d->inter.notify();
 }
 
 
@@ -754,9 +753,7 @@ QBindable<bool> QTimer::bindableSingleShot()
 void QTimer::setInterval(int msec)
 {
     Q_D(QTimer);
-    d->inter.removeBindingUnlessInWrapper();
-
-    d->inter.setValueBypassingBindings(msec);
+    d->inter.setValue(msec);
     if (d->id != INV_TIMER) {                        // create new timer
         QObject::killTimer(d->id);                        // restart timer
         d->id = QObject::startTimer(msec, d->type);
diff --git a/src/gui/image/qmovie.cpp b/src/gui/image/qmovie.cpp
index a98a4ed154..a293d358cf 100644
--- a/src/gui/image/qmovie.cpp
+++ b/src/gui/image/qmovie.cpp
@@ -930,6 +930,7 @@ void QMovie::setSpeed(int percentSpeed)
     if (!d->speed && d->movieState == Running)
         d->nextImageTimer.start(nextFrameDelay());
     d->speed.setValue(percentSpeed);
+    d->speed.notify();
 }
 
 int QMovie::speed() const
diff --git a/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp b/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp
index 6062c23189..4186607d90 100644
--- a/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp
+++ b/tests/auto/corelib/kernel/qproperty/tst_qproperty.cpp
@@ -469,12 +469,12 @@ class BindingLoopTester : public QObject
     BindingLoopTester() {}
 
     int eagerProp() {return eagerData.value();}
-    void setEagerProp(int i) { eagerData.setValue(i); }
+    void setEagerProp(int i) { eagerData.setValue(i); eagerData.notify(); }
     QBindable<int> bindableEagerProp() {return QBindable<int>(&eagerData);}
     Q_OBJECT_COMPAT_PROPERTY(BindingLoopTester, int, eagerData, &BindingLoopTester::setEagerProp)
 
     int eagerProp2() {return eagerData2.value();}
-    void setEagerProp2(int i) { eagerData2.setValue(i); }
+    void setEagerProp2(int i) { eagerData2.setValue(i); eagerData2.notify(); }
     QBindable<int> bindableEagerProp2() {return QBindable<int>(&eagerData2);}
     Q_OBJECT_COMPAT_PROPERTY(BindingLoopTester, int, eagerData2, &BindingLoopTester::setEagerProp2)
 };
@@ -536,7 +536,7 @@ public:
 
 #define GEN(N) \
     int prop##N() {return propData##N.value();} \
-    void setProp##N(int i) { propData##N.setValue(i); } \
+    void setProp##N(int i) { if (i == propData##N) return; propData##N.setValue(i); propData##N.notify(); } \
     QBindable<int> bindableProp##N() {return QBindable<int>(&propData##N);} \
     Q_OBJECT_COMPAT_PROPERTY(ReallocTester, int, propData##N, &ReallocTester::setProp##N)
     GEN(1)
@@ -1064,6 +1064,7 @@ public:
         if (i < 0)
             i = 0;
         compatData.setValue(i);
+        compatData.notify();
         emit compatChanged();
     }
 
@@ -1390,7 +1391,7 @@ class CompatPropertyTester : public QObject
     CompatPropertyTester(QObject *parent = nullptr) : QObject(parent) { }
 
     int prop1() {return prop1Data.value();}
-    void setProp1(int i) { prop1Data.setValue(i); }
+    void setProp1(int i) { if (i == prop1Data) return; prop1Data.setValue(i); prop1Data.notify(); }
     QBindable<int> bindableProp1() {return QBindable<int>(&prop1Data);}
     Q_OBJECT_COMPAT_PROPERTY(CompatPropertyTester, int, prop1Data, &CompatPropertyTester::setProp1)
 
@@ -1421,9 +1422,9 @@ signals:
     void prop3Changed();
 
 public:
-    void setProp1(int val) { prop1Data.setValue(val); emit prop1Changed();}
-    void setProp2(int val) { prop2Data.setValue(val); emit prop2Changed();}
-    void setProp3(int val) { prop3Data.setValue(val); emit prop3Changed();}
+    void setProp1(int val) { prop1Data.setValue(val); prop1Data.notify(); emit prop1Changed();}
+    void setProp2(int val) { prop2Data.setValue(val); prop2Data.notify(); emit prop2Changed();}
+    void setProp3(int val) { prop3Data.setValue(val); prop3Data.notify(); emit prop3Changed();}
 
     int prop1() { return prop1Data; }
     int prop2() { return prop2Data; }