diff --git a/libs/ui/DynamicDisplayInfo.cpp b/libs/ui/DynamicDisplayInfo.cpp
index d5c4ef0..78ba996 100644
--- a/libs/ui/DynamicDisplayInfo.cpp
+++ b/libs/ui/DynamicDisplayInfo.cpp
@@ -41,7 +41,8 @@
             FlattenableHelpers::getFlattenedSize(activeColorMode) +
             FlattenableHelpers::getFlattenedSize(hdrCapabilities) +
             FlattenableHelpers::getFlattenedSize(autoLowLatencyModeSupported) +
-            FlattenableHelpers::getFlattenedSize(gameContentTypeSupported);
+            FlattenableHelpers::getFlattenedSize(gameContentTypeSupported) +
+            FlattenableHelpers::getFlattenedSize(preferredBootDisplayMode);
 }
 
 status_t DynamicDisplayInfo::flatten(void* buffer, size_t size) const {
@@ -55,6 +56,7 @@
     RETURN_IF_ERROR(FlattenableHelpers::flatten(&buffer, &size, hdrCapabilities));
     RETURN_IF_ERROR(FlattenableHelpers::flatten(&buffer, &size, autoLowLatencyModeSupported));
     RETURN_IF_ERROR(FlattenableHelpers::flatten(&buffer, &size, gameContentTypeSupported));
+    RETURN_IF_ERROR(FlattenableHelpers::flatten(&buffer, &size, preferredBootDisplayMode));
     return OK;
 }
 
@@ -66,6 +68,7 @@
     RETURN_IF_ERROR(FlattenableHelpers::unflatten(&buffer, &size, &hdrCapabilities));
     RETURN_IF_ERROR(FlattenableHelpers::unflatten(&buffer, &size, &autoLowLatencyModeSupported));
     RETURN_IF_ERROR(FlattenableHelpers::unflatten(&buffer, &size, &gameContentTypeSupported));
+    RETURN_IF_ERROR(FlattenableHelpers::unflatten(&buffer, &size, &preferredBootDisplayMode));
     return OK;
 }
 
diff --git a/libs/ui/include/ui/DynamicDisplayInfo.h b/libs/ui/include/ui/DynamicDisplayInfo.h
index a4c2f71..ce75a65 100644
--- a/libs/ui/include/ui/DynamicDisplayInfo.h
+++ b/libs/ui/include/ui/DynamicDisplayInfo.h
@@ -35,7 +35,7 @@
     // This struct is going to be serialized over binder, so
     // we can't use size_t because it may have different width
     // in the client process.
-    int32_t activeDisplayModeId;
+    ui::DisplayModeId activeDisplayModeId;
 
     std::vector<ui::ColorMode> supportedColorModes;
     ui::ColorMode activeColorMode;
@@ -49,6 +49,9 @@
     // For more information, see the HDMI 1.4 specification.
     bool gameContentTypeSupported;
 
+    // The boot display mode preferred by the implementation.
+    ui::DisplayModeId preferredBootDisplayMode;
+
     std::optional<ui::DisplayMode> getActiveDisplayMode() const;
 
     bool isFixedSize() const { return false; }