diff --git a/core/proto/android/server/powermanagerservice.proto b/core/proto/android/server/powermanagerservice.proto
index 6850d01099132..0455d58f498b3 100644
--- a/core/proto/android/server/powermanagerservice.proto
+++ b/core/proto/android/server/powermanagerservice.proto
@@ -225,9 +225,10 @@ message PowerServiceSettingsAndConfigurationDumpProto {
     message ScreenBrightnessSettingLimitsProto {
         option (.android.msg_privacy).dest = DEST_AUTOMATIC;
 
-        optional int32 setting_minimum = 1;
-        optional int32 setting_maximum = 2;
-        optional int32 setting_default = 3;
+        reserved 1, 2, 3; // setting_minimum, setting_maximum, setting_default
+        optional float setting_minimum_float = 4;
+        optional float setting_maximum_float = 5;
+        optional float setting_default_float = 6;
     }
 
     // True to decouple auto-suspend mode from the display state.
diff --git a/services/core/java/com/android/server/power/PowerManagerService.java b/services/core/java/com/android/server/power/PowerManagerService.java
index 8483c774cb8e2..e6c23b66eba22 100644
--- a/services/core/java/com/android/server/power/PowerManagerService.java
+++ b/services/core/java/com/android/server/power/PowerManagerService.java
@@ -4213,15 +4213,15 @@ public final class PowerManagerService extends SystemService
                                     .SCREEN_BRIGHTNESS_SETTING_LIMITS);
             proto.write(
                     PowerServiceSettingsAndConfigurationDumpProto.ScreenBrightnessSettingLimitsProto
-                            .SETTING_MINIMUM,
+                            .SETTING_MINIMUM_FLOAT,
                     mScreenBrightnessSettingMinimum);
             proto.write(
                     PowerServiceSettingsAndConfigurationDumpProto.ScreenBrightnessSettingLimitsProto
-                            .SETTING_MAXIMUM,
+                            .SETTING_MAXIMUM_FLOAT,
                     mScreenBrightnessSettingMaximum);
             proto.write(
                     PowerServiceSettingsAndConfigurationDumpProto.ScreenBrightnessSettingLimitsProto
-                            .SETTING_DEFAULT,
+                            .SETTING_DEFAULT_FLOAT,
                     mScreenBrightnessSettingDefault);
             proto.end(screenBrightnessSettingLimitsToken);