Display Calibration

Enhance Color Saturation for universal Android devices.

this module using surfaceflinger, for color saturation u can change the value manually from 1.0 - 2.0.

service running, with terminal use su (superuser) access :

service call SurfaceFlinger 1022 f 1.25

persistent on boot (property) :

resetprop -n persist.sys.sf.color_saturation 1.25

default value 1.0, maximum value 2.0

New Version x.x-200 :

for new version x.x-200 using disable VSYNC for better experience. before you install this version, try to find out if the device you are using uses VSYNC, with the command:

dumpsys SurfaceFlinger | grep -A 15 "DesiredDisplayModeSpecs"

focus on "app: state=" if the description is Vsync it means your device is using VSYNC, if the description is Idle then the device is using disable VSYNC. with the command:

service call SurfaceFlinger 1036 i32 0

value: 0 for disable, 1 for enable.

If you have installed but the description remains Vsync instead of Idle, then you must restart the surfaceflinger with the following steps:

• open terminal (adb, Termux, etc.) run with root access su
• then, stop surfaceflinger and reboot manually by pressing the power button.
• done!

New Version x.x-x10 :

for new version xx-x10 using Color Matrix (RGBA) Dominan for increase DynamicRange (brightness and darkness). with this command:

 service call SurfaceFlinger 1015 i32 1 f 1.05 f 0 f 0 f 0 f 0 f 1.05 f 0 f 0 f 0 f 0 f 1.05

f 1.05 (first) for Red 🔴, f 1.05 (second) for Green 🟢, f 1.05 (third) for Blue 🔵, and last for Alpha ⚪.

the configuration for f (float) values is like this: R G B A R G B A R G B A and change R G B in different places, so it's not directly R G B A: service call SurfaceFlinger 1015 i32 1 f 1.05 f 1.05 f 1.05 and not use value for alpha.

value: 0 - 1 (normal), but in this module used 1.05 to make it stronger (not recommended).

• for disable ColorMatrix to restore to default:

 service call SurfaceFlinger 1015 i32 0

The Result

Requirement

this is module version so install using Magisk app: Download from Release page

*does not cause softbrick or bootloop.

Warning!

*do not downgrade the module, change the value manually in the root directory:

/data/adb/modules/DisCal/service.sh

open the manual file with a text editor (with root/superuser permission), change the values, save, then reboot, done!

Tested on

• Android 11 - MIUI 12.5
• Android 12 - MIUI 13
• Android 13 - MIUI 14
• Android 14 - HyperOS 1.0