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From time to time, I see my Android screen turns on. How can I view which program wakes up my Android screen?

I use unrooted Android 6.0 on LG4. The screen is locked.

  • Is your device rooted? – beeshyams Aug 5 '18 at 3:18
  • @beeshyams no~~ – Franck Dernoncourt Aug 5 '18 at 3:19
  • It's likely a wakelock created by an app to keep the screen on. You can try solutions here to identify the truant app and uninstall that – beeshyams Aug 5 '18 at 3:30
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You should look into dumpsys. This works without root, using ADB.

First, enable developer mode on your phone (tap the build number in settings -> information/about this phone 7 times). Then go to settings -> developer settings and enable USB debugging there.

On your PC install ADB, there are many versions, minimal ADB and fastboot is quite nice.

Once you got all that you can execute adb dumpsys on your PC within ADB to get a f**kton of increible information, from detailed battery usage to SMS history, LCD debug information, wifi radio information and a ton more. All without root, so that's pretty cool.

The dumpsys utility is divided into multiple modules, which you can individually access by appending their names onto the adb dumpsys command.

The module you should be looking at would probably be usagestats, so give adb dumpsys usagestats a run. That should show you which app was active at the time your display turns on.

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