Merge "Retrive the value of user-pref, if its not stored in persistentDataStore" into tm-qpr-dev

1 files changed, 14 insertions, 1 deletions

diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index 7806ece9e65f..e51976b766fd 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -1681,7 +1681,20 @@ public final class DisplayManagerService extends SystemService {
         final Point userPreferredResolution =
                 mPersistentDataStore.getUserPreferredResolution(device);
         final float refreshRate = mPersistentDataStore.getUserPreferredRefreshRate(device);
-        if (userPreferredResolution == null && Float.isNaN(refreshRate)) {
+        // If value in persistentDataStore is null, preserving the mode from systemPreferredMode.
+        // This is required because in some devices, user-preferred mode was not stored in
+        // persistentDataStore, but was stored in a config which is returned through
+        // systemPreferredMode.
+        if ((userPreferredResolution == null && Float.isNaN(refreshRate))
+                || (userPreferredResolution.equals(0, 0) && refreshRate == 0.0f)) {
+            Display.Mode systemPreferredMode = device.getSystemPreferredDisplayModeLocked();
+            if (systemPreferredMode == null) {
+                return;
+            }
+            storeModeInPersistentDataStoreLocked(
+                    display.getDisplayIdLocked(), systemPreferredMode.getPhysicalWidth(),
+                    systemPreferredMode.getPhysicalHeight(), systemPreferredMode.getRefreshRate());
+            device.setUserPreferredDisplayModeLocked(systemPreferredMode);
             return;
         }
         Display.Mode.Builder modeBuilder = new Display.Mode.Builder();