It's been a long time since I was asked to turn on my laptop.

Which is one area where the agency doesn't seem to act quite as stupid as it does in many other areas - whether a laptop boots up doesn't prove that it's not a bomb. It only proves that it's a working laptop. And a working laptop could just as easliy be a bomb as a non-working laptop.

It's a non-issue. If your laptop dies - it's still a laptop and the TSA won't ask you to turn it on.