TIL my laptop turns off when near to a phone
3 votes zPlus — 3 votes, 0 commentsSource

Somebody today put their phone next to my laptop, and it immediately turned off. My heart started racing. Oh my… why did it turn off? Has this PC finally broken? I have unsaved stuff! I didn’t realize that it was the phone at first, I just observed my PC go blank without explanation. Reboot, and off again. I moved the PC to another place in a desperate search for an answer, and sure enough it was working again. WTF is wrong with my desk now?? Turns out it was the phone. Every time I put a phone near the laptop, it turns off. More precisely for my particular laptop the phone must be near the power button, on the upper-left corner of the case.

Apparently the PC uses a magnet and a sensor that senses magnetic fields to detect when the lid is closed. Putting a phone or a magnet near that sensor will induce the sensor to think that I’ve closed my laptop. The more you know…