How to verify android device Screen ON or OFF using adb shell command

Question

Tried to check device Screen ON or OFF using mScreenOn=true or mPowerState=SCREEN_BRIGHT_BIT. But the following commands are NOT working in latest android versions. It is returning nothing

Following commands working fine in Android - 4.3 Jelly Bean

1. using input_method dumpsys

   adb shell dumpsys input_method | grep mScreenOn

2. using power dumpsys

   adb shell dumpsys power | grep mScreenOn or

   adb shell dumpsys power | grep mPowerState

is there any other way to verify the screen OFF or ON state using adb shell command on latest android versions (Lollipop, Nougat, Oreo, Pie,..etc)

Answer 1

Recently I had same problem and found out below solution.

mInteractive value would be "true" in dumpsys input_method for display ON and "false" for display OFF.

Ex usage in shell script:

screen_info=`adb shell dumpsys input_method | grep mInteractive=true`
if [[ $screen_info == *"mInteractive"* ]]
then
    echo "Screen is ON"
     #Do something
else
    echo "Screen is OFF"
    #Do something
fi

Answer 2

Android 5.0.1 – Lollipop the behavior changed, they removed logging mScreenOn

Tried many times and found out after comparing the dumpsys input_method files

adb shell dumpsys input_method | grep -i mActive

Answer 3

has answer for android - Obtain screen status using ADB - Stack Overflow, and copy to here:

• My Phone: XiaoMi 9
  • Android: 10

use adb to check screen status ON/OFF ?

method 1: use mHoldingDisplaySuspendBlocker

• Command: adb shell dumpsys power | grep mHoldingDisplaySuspendBlocker
• Output:
  • mHoldingDisplaySuspendBlocker=false -> Screen OFF
  • mHoldingDisplaySuspendBlocker=true -> Screen ON

method 2: use mWakefulness

• Command: adb shell dumpsys power | grep mWakefulness=
• Output:
  • mWakefulness=Dozing -> Screen OFF
  • mWakefulness=Awake -> Screen ON

method 3: use nfc (if android has NFC module)

• Command: adb shell dumpsys nfc | grep mScreenState=
• Output:
  • mScreenState=OFF_LOCKED -> Screen OFF (and Locked)
  • mScreenState=ON_XXX -> Screen ON
    • mScreenState=ON_LOCKED -> Screen ON (and Locked)
    • mScreenState=ON_UNLOCKED -> Screen ON (and Unlocked)

method 4: use service call

• Command: adb shell service call power 12
• Output:
  • Result: Parcel(00000000 00000000 '........') -> 0 means Screen OFF
  • Result: Parcel(00000000 00000001 '........') -> 1 means Screen ON