From da7e85e6c05a2683e8d5643d2a304415ca68c5fd Mon Sep 17 00:00:00 2001
From: Jeff Chang <chengjeff@google.com>
Date: Tue, 9 Jan 2024 08:52:07 +0000
Subject: [PATCH] Update display dim configuration

To extend battery life, modify the display dim configuration to enter
the dimming state more aggressively. The screen should dim at
minimum(20 seconds, timeout * 0.33) before the screen actually timing
out.
 Screen timeout (secs) | Dim duration before | Dim duration After
              15                    3                      4.95
              30                    6                      9.9
              60                    7                     19.8
             120                    7                     20
             300                    7                     20
             600                    7                     20
Bug: 315246849
Test: Build & Verify the dim duration with each setting.
Change-Id: I79939290b6a355cf41d43f54a653c533ea833d26
---
 overlay/frameworks/base/core/res/res/values/config.xml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 0c741670..611baa06 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -314,4 +314,11 @@
 
     <!-- Pre-scale volume at volume step 3 for Absolute Volume -->
     <fraction name="config_prescaleAbsoluteVolume_index3">100%</fraction>
+
+    <!-- User activity timeout: Maximum screen dim duration in milliseconds. -->
+    <integer name="config_maximumScreenDimDuration">20000</integer>
+
+    <!-- User activity timeout: Maximum screen dim duration as a percentage of screen off timeout.
+    -->
+    <fraction name="config_maximumScreenDimRatio">33%</fraction>
 </resources>