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A comment on Hardware fix for Dell “AC power adapter could not be determined”. Parent comment

Re:Hardware fix for Dell “AC power adapter could not be dete... by userbinator on Monday May 25, 2020 @10:42PM (#23306959)
HP and Lenovo ones use a resistor on the extra pin, while Dell has put a 1-wire memory chip.

The resistor setup is both simpler, and unlike the memory chip, can't easily be repurposed for DRM.

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