I/ActivityManager(  174): Starting: Intent { cmp=com.bwx.bequick/.flashlight.ScreenLightActivity } from pid 3964
D/dalvikvm( 4063): GC_FOR_MALLOC freed 431K, 53% free 3102K/6599K, external 386K/542K, paused 111ms
I/ActivityManager(  174): Displayed com.bwx.bequick/.flashlight.ScreenLightActivity: +383ms
D/WindowManager(  174): I'm tired mEndcallBehavior=0x2
I/power   (  174): *** set_screen_state 0
D/Sensors (  174): BoschYamaha::~enable Accel(0, 0)
D/Sensors (  174): BoschYamaha::~enable Accel(0, 0) open /sys/class/input/event6/device/enable
D/Sensors (  174): CompassSensor::~enable(0, 0) opened /sys/class/input/event6/device/enable
D/SurfaceFlinger(  174): About to give-up screen, flinger = 0x94280

Sensors are not triggered within the App ...
Now i press the Power Button...

D/WifiService(  174): ACTION_SCREEN_OFF
I/power   (  174): *** set_screen_state 1
D/Sensors (  174): BoschYamaha::~enable Accel(0, 1)
D/Sensors (  174): BoschYamaha::~enable Accel(0, 1) open /sys/class/input/event6/device/enable
D/Sensors (  174): CompassSensor::~enable(0, 1) opened /sys/class/input/event6/device/enable

And i turn it on again...

D/WifiService(  174): ACTION_SCREEN_ON
D/dalvikvm(  263): GREF has increased to 301
D/SurfaceFlinger(  174): Screen about to return, flinger = 0x94280
D/dalvikvm(  263): GREF has increased to 401
W/KeyCharacterMap( 3964): No keyboard for id 0
W/KeyCharacterMap( 3964): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
I/ActivityManager(  174): No longer want com.google.android.apps.maps:NetworkLocationService (pid 3311): hidden #16
D/WifiService(  174): acquireWifiLockLocked: WifiLock{NetworkLocationProvider type=2 binder=android.os.BinderProxy@4082a090}
E/JavaBinder(  174): !!! FAILED BINDER TRANSACTION !!!
D/WifiService(  174): ACTION_BATTERY_CHANGED pluggedType: 0
W/ActivityManager(  174): Scheduling restart of crashed service com.google.android.apps.maps/com.google.android.location.internal.server.NetworkLocationService in 5000ms
I/ActivityManager(  174): Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10200000 cmp=com.android.launcher/.Launcher } from pid 174