Acer e1-571 laptop closed mechanism?

minu316
minu316 Member Posts: 1 New User
edited November 2023 in 2020 Archives
I have a laptop that won't sleep when closing the lid. I have recently swapped out the motherboard and I cant be sure if this existed before or is new behaviour.

I am convinced that it is a hardware issue. I have ruled out software.

Can anyone explain to me what part in the laptop is reponsible for telling it that the lid is closed? Is it the power button, is there some thing under the lcd bezel like a switch?

I can't find this info anywhere, but if I can out what hardware is reponsibile, I can start to troubleshoot it.