|You probably don't need to jumper the switch (and that's a little inconvenient every time that you want to start and stop your laptop). I had the same problem with an eMachines laptop and (with the help of a YouTube video) took it apart to access the switch. I then took the switch apart (the easiest part of the process), cleaned the contacts and reassembled. All is now fine.|
These switches are really simple, crude affairs and seem to be a weak spot of any laptop. Replacing the switch with a new one would have been a fiddly job; cleaning it was far simpler.