HP INCFollow


In general laptop design, it has hall sensor chip to make system enter sleep mode to turn‐off internal display

once the angle is under 15~20 degree in general between Cover and Base. Based on the design perspective, hall sensor

is triggering by magnetic object. Laptop will design a magnet on cover side to do such kind event. In fact, which means

that we don’ have any prevention solution to end user move magnetic something to close this hall sensor chip. So, the

laptop will enter sleep mode, turn‐off back light or something else in their setup once this unexpected magnetic object

to close hall sensor chip location.

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