This is pretty much what happened to my laptop yesterday. It's toast...fried....done. The smoke was very impressive-at least the kids thought so. Just in time for the new school year...80% of all work is done online.
I am now begging and borrowing for computer time from my kids...they have been very kind to their Mom. :)
Son took my laptop into the garage and took it apart....I knew that the fan probably wasn't working in it because it would get hot pretty fast, but he said there was a layer of dust in there covering it...the damage is not fixable. It's been 2 years....maybe that's the average life...I dunno. Before now, I had never seen smoke come out of anything that wasn't plugged into the wall.
I think I need to put an urgent message in to Santa for an early Christmas present.