I left my tablet home for the entire day, in standby mode and under charge. When I came back, I found the screen was on and the device was quite warm. A few nights ago, I was awaken by the brightness of the screen at 4AM (revived without apparent reason) and never managed to sleep again until I got up to shut it down completely.
I understand that there could be a program running with permission to prevent standby mode for the device, but since 70% of the software I installed require this permission I'm a bit confused.
If I return to the desktop and put the device to sleep, why the hell should some app revive it from standby? I understand that a movie player, when focused, wants to avoid the device to enter standby, but I really don't get why should apps revive the device to lockscreen and never let it go sleep again.
It only happens when I'm not in Airplane mode.
Is there a way to find which application revived the screen and damn uninstall it?
I have installed stock HC3.2 rooted from XDA Developers.
[Add] A few log lines
06-08 21:49:42.630 I/Email (1256): ReconcilePopImapAccountsSync: done 06-08 21:49:44.490 D/Email (1256): *** synchronizeMailboxGeneric *** 06-08 21:49:45.590 I/AlarmManager(792): Alarm type : 2, from setRepeating operation : com.android.email 06-08 21:49:45.590 I/AlarmManager(792): ----Alarm type: 2Second:41988.403000000 06-08 21:49:45.930 D/dalvikvm(13597): GC_EXPLICIT freed 28K, 9% free 7121K/7751K, paused 7ms+2ms 06-08 21:49:51.510 V/AlarmManager(792): --- from triggerAlarmsLocked operation: android 06-08 21:49:51.510 I/AlarmManager(792): ----Alarm type: 2Second:42300.0 06-08 21:49:51.550 I/Email (1256): ReconcilePopImapAccountsSync: start 06-08 21:49:51.550 I/AlarmManager(792): Alarm type : 2, from setRepeating operation : com.android.email 06-08 21:49:53.150 V/AlarmManager(792): --- from triggerAlarmsLocked operation: com.acer.ap.sns 06-08 21:49:53.150 I/AlarmManager(792): ----Alarm type: 3Second:42674.723000000 06-08 21:49:53.180 D/BatteryService(792): level:39 scale:100 status:3 health:2 present:true voltage: 3768 temperature: 295 technology: Li-ion AC powered:false USB powered:false icon:17302707 invalid charger:0 06-08 21:49:55.570 I/AlarmManager(792): Alarm type : 3, from setRepeating operation : android 06-08 21:49:55.570 I/AlarmManager(792): ----Alarm type: 3Second:42590.997000000 06-08 21:49:55.670 I/Email (1256): ReconcilePopImapAccountsSync: done 06-08 21:49:55.860 W/BatteryService(792): Unknown battery status ';ވ����@' 06-08 21:49:55.860 I/power (792): *** set_screen_state 1