Saturday, 16 January 2016

Sleep of Death befalls my SGN 12.2



Hello World,

I recently purchased a SGN 12.2 Pro - Model Number SM-P900.
I flashed CyanogenMod onto it, and now its Android Version is 5.1.1
The CyanogenMod version is 12.1-20151104-Unofficial-v1aWIFI
The kernel version is 3.4.104-gd233b3f

Now for the most part the system runs smooth and w/o problems, but 7 or 8 times out of 10 when it goes asleep (screen is off and no program is actively running in the foreground, but the system was not shut down), I can not wake the tablet back up again.
Matter of fact, I end up having to perform a hard reboot on the tablet (pressing the power button until I force a reset) to get it to respond again.
I ran a logcat session in the background to catch any error, but the recorded log did not any error when this happened. It just suddenly stopped recording.
For me it seems like the system is going into some sort of hibernation mode, from which it only awakes after a hard reset.
But I don't see any such setting as "hibernation" in my system panel, and I certainly didn't install any such program on my tablet.
Now I am getting afraid that I might end up corrupting the filesystem or some important database by forcing these hard resets all the time.
That is why I need to find out what's going on here - anyone got some constructive ideas about it?

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