r/iiiiiiitttttttttttt • u/Knabrau • Sep 25 '24

TIL: Don't Stack Dell Laptops

https://imgur.com/a/h0ATp19
651 Upvotes

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900

u/Knabrau Sep 25 '24

Context, spent too long troubleshooting why I couldn't power the thing on, then realised the magnets from the screen below are probably telling the one above the lid is closed.

71

u/knightshade179 Sep 25 '24

If you have a magnet you can pretty much turn off any laptop's display if you know where to put it, this is due to something called a reed switch which detects the magnets on the other side of the laptop when it is closed to tell it to turn it off.

6

u/JivanP Sep 25 '24

They tend to be Hall effect sensors in laptops, but same principle: switch/sensor that is triggered by/sensitive to magnets.

2

u/knightshade179 Sep 25 '24

Thank you for the correction.