diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 8a57f92..f0604b9 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -2604,6 +2604,7 @@
         outMode.xDpi = mode.xDpi;
         outMode.yDpi = mode.yDpi;
         outMode.refreshRate = mode.refreshRate;
+        outMode.vsyncRate = mode.vsyncRate;
         outMode.appVsyncOffset = mode.appVsyncOffset;
         outMode.sfVsyncOffset = mode.sfVsyncOffset;
         outMode.presentationDeadline = mode.presentationDeadline;
diff --git a/libs/gui/aidl/android/gui/DisplayMode.aidl b/libs/gui/aidl/android/gui/DisplayMode.aidl
index ce30426..b057653 100644
--- a/libs/gui/aidl/android/gui/DisplayMode.aidl
+++ b/libs/gui/aidl/android/gui/DisplayMode.aidl
@@ -29,7 +29,9 @@
     float yDpi = 0.0f;
     int[] supportedHdrTypes;
 
+    // Some modes have peak refresh rate lower than the panel vsync rate.
     float refreshRate = 0.0f;
+    float vsyncRate = 0.0f;
     long appVsyncOffset = 0;
     long sfVsyncOffset = 0;
     long presentationDeadline = 0;
diff --git a/libs/ui/include/ui/DisplayMode.h b/libs/ui/include/ui/DisplayMode.h
index 65a8769..a469c78 100644
--- a/libs/ui/include/ui/DisplayMode.h
+++ b/libs/ui/include/ui/DisplayMode.h
@@ -37,7 +37,9 @@
     float yDpi = 0;
     std::vector<ui::Hdr> supportedHdrTypes;
 
-    float refreshRate = 0;
+    // Some modes have peak refresh rate lower than the panel vsync rate.
+    float refreshRate = 0.f;
+    float vsyncRate = 0.f;
     nsecs_t appVsyncOffset = 0;
     nsecs_t sfVsyncOffset = 0;
     nsecs_t presentationDeadline = 0;
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 7e799bb..e08690a 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1047,6 +1047,7 @@
 
         const auto peakFps = mode->getPeakFps();
         outMode.refreshRate = peakFps.getValue();
+        outMode.vsyncRate = mode->getVsyncRate().getValue();
 
         const auto vsyncConfigSet =
                 mVsyncConfiguration->getConfigsForRefreshRate(Fps::fromValue(outMode.refreshRate));
@@ -9189,6 +9190,7 @@
         outMode.xDpi = mode.xDpi;
         outMode.yDpi = mode.yDpi;
         outMode.refreshRate = mode.refreshRate;
+        outMode.vsyncRate = mode.vsyncRate;
         outMode.appVsyncOffset = mode.appVsyncOffset;
         outMode.sfVsyncOffset = mode.sfVsyncOffset;
         outMode.presentationDeadline = mode.presentationDeadline;