diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index d91a7915..00000000 100755
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -5454,10 +5454,19 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
     }
 
     private void applyDims() {
+        // Passenger Control uses a large translucent dialog. On msm8974, placing an HWC2
+        // solid-color dim effect between that dialog and its activity forces the complete
+        // display through the legacy GLES client target. This drops scrolling to a few frames
+        // per second and was also the trigger for the black/white corner corruption. Keep the
+        // normal HWC protection for every other window, but omit this one optional backdrop so
+        // the application's two buffered windows can stay on the MDP fast path.
+        final boolean suppressPassengerControlDim =
+                "ru.monjaro.passengercontrol.client".equals(mAttrs.packageName);
         if (!mAnimatingExit && mAppDied) {
             mIsDimming = true;
             getDimmer().dimAbove(getSyncTransaction(), this, DEFAULT_DIM_AMOUNT_DEAD_WINDOW);
-        } else if (((mAttrs.flags & FLAG_DIM_BEHIND) != 0 || shouldDrawBlurBehind())
+        } else if (!suppressPassengerControlDim
+                && ((mAttrs.flags & FLAG_DIM_BEHIND) != 0 || shouldDrawBlurBehind())
                    && isVisibleNow() && !mHidden) {
             // Only show the Dimmer when the following is satisfied:
             // 1. The window has the flag FLAG_DIM_BEHIND or blur behind is requested