I had the same problem. I tried workarounds written above but nothing helped. Haddisk made one cycle in every second minute when running on battery. Then I turn off laptop mode and now it's OK. And I don't recognize any difference between running with laptop mode and without laptop mode. Battery life is about the same.
I had the same problem. I tried workarounds written above but nothing helped. Haddisk made one cycle in every second minute when running on battery. Then I turn off laptop mode and now it's OK. And I don't recognize any difference between running with laptop mode and without laptop mode. Battery life is about the same.