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?