MiPad4/android_device_xiaomi_sdm660-common
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

sdm660-common: overlay: Give light sensor some time to warm up

Browse source 
When being in dark environments, turning screen off, then moving to
bright environments and turning screen on, sometimes it happens that the
light sensor emits an initial light sample of 1 lux, which causes the
automatic brightness controller to ramp down the brightness even though
the ambient brightness is high. Avoid the controller using those samples
by giving the light sensor some time to warm up.

Change-Id: I81dcb41a25ff0c9f0cf3265da7054ac7ebcbcc34
This commit is contained in:
Danny Baumann 2018-08-16 13:39:50 +02:00 committed by Max Weffers
parent bccffd2e78
commit 0b368e57b4
No known key found for this signature in database
GPG key ID: 795F73D22FB93FAE
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
overlay/frameworks/base/core/res/res/values/config.xml
View file

@ -97,6 +97,11 @@
<!-- Period of time in which to consider light samples in milliseconds. -->
<integer name="config_autoBrightnessAmbientLightHorizon">16000</integer>
<!-- Amount of time it takes for the light sensor to warm up in milliseconds.
For this time after the screen turns on, the Power Manager
will not debounce light sensor readings -->
<integer name="config_lightSensorWarmupTime">200</integer>
<!-- If this is true, the screen will come on when you unplug usb/power/whatever. -->
<bool name="config_unplugTurnsOnScreen">true</bool>