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I have a Samsung notebook with a dual boot configuration with Windows 7 and Kubuntu 12.04, and I mostly use Kubuntu.
Last night I fully charged its battery to 100%. After that I shut it down.
The next morning, 7 hours later, when I woke up and tried to turn it on, it simply didn't turn on. The LED on the power button stayed off.
Then, when I tried to turn it on with the AC Adapter plugged in, all looked fine, but I noticed that the battery level was at 0% now.
So I wonder, why did the battery fully discharged all the night long even with the notebook off? It makes no sense to me, shouldn't happen. I have had this notebook working for a month, when I bought it, and it never occurred before.
Do you guys have any idea what this issue could possibly be?
3Either your battery is dead or your laptop came alive during the night. Having a laptop wake up from sleep or hibernate for no apparent reason is quite common. (Hint: Check your task scheduler for tasks marked as being able to start on battery power and/or wake from sleep.) – Daniel R Hicks – 2012-10-13T12:10:29.653
@DanielRHicks Thanks, I think this possibility could be correct, but I didn't find anything scheduled here. I tried the same thing today and, this time, the laptop was fully charged. – thiagowfx – 2012-10-14T14:52:42.220
1I suspect that if you look through scheduled tasks you'll find at least a half-dozen that are set, eg, to go off once an hour, and are marked to start on battery. Change all those to not start on battery. – Daniel R Hicks – 2012-10-15T14:41:48.347