score:5
There is no problem with having a laptop or even a desktop computer in the suitcase. I did this just last week going through Atlanta. They did open the suitcase and left a note stating that, including a number to call and reference for the search. From the X-ray machine, what they probably see are some dark blocks and wires connecting them, so they will check it. They do the same for my tripod BTW, but by no means is a laptop prohibited. There are some restrictions on loose batteries but this does not apply to your situation. See this question for details.
In my case, they even knew it was a computer since I declared it at the Check-In Counter (that is what you call kiosks) in order to buy insurance for it. See this question for details.
Checks are usually done at the departure airport but usually when entering Europe, they are done one more time at your point of entry into Europe. So you may get one or two notes regarding inspection. It would be good for you to have a copy of the invoice for the laptop in case you need to make a claim to insurance should something happen.