diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 6dae07d..82bd398 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -7052,6 +7052,10 @@
     mScheduler->setRefreshRateConfigs(activeDisplay->holdRefreshRateConfigs());
     onActiveDisplaySizeChanged(activeDisplay);
     mActiveDisplayTransformHint = activeDisplay->getTransformHint();
+
+    // Update the kernel timer for the current active display, since the policy
+    // for this display might have changed when it was not the active display.
+    toggleKernelIdleTimer();
 }
 
 status_t SurfaceFlinger::addWindowInfosListener(