diff --git a/src/config.cpp b/src/config.cpp
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -222,6 +222,8 @@
     }
     newConfig->d->primaryOutput = newConfig->d->findPrimaryOutput();
     newConfig->setSupportedFeatures(supportedFeatures());
+    newConfig->setTabletModeAvailable(tabletModeAvailable());
+    newConfig->setTabletModeEngaged(tabletModeEngaged());
     return newConfig;
 }
 
diff --git a/src/configserializer.cpp b/src/configserializer.cpp
--- a/src/configserializer.cpp
+++ b/src/configserializer.cpp
@@ -68,6 +68,9 @@
         obj[QLatin1String("screen")] = serializeScreen(config->screen());
     }
 
+    obj[QLatin1String("tabletModeAvailable")] = config->tabletModeAvailable();
+    obj[QLatin1String("tabletModeEngaged")] = config->tabletModeEngaged();
+
     return obj;
 }
 
@@ -183,6 +186,13 @@
         config->setSupportedFeatures(static_cast<Config::Features>(map[QStringLiteral("features")].toInt()));
     }
 
+    if (map.contains(QLatin1String("tabletModeAvailable"))) {
+        config->setTabletModeAvailable(map[QStringLiteral("tabletModeAvailable")].toBool());
+    }
+    if (map.contains(QLatin1String("tabletModeEngaged"))) {
+        config->setTabletModeEngaged(map[QStringLiteral("tabletModeEngaged")].toBool());
+    }
+
     if (map.contains(QLatin1String("outputs"))) {
         const QDBusArgument &outputsArg = map[QStringLiteral("outputs")].value<QDBusArgument>();
         outputsArg.beginArray();