HeadnotesMany equations and formulas look intimidating. However, when you hunt them down, they are definitely not! Just papertigers!
Now let's hunt the papertiger.
Although many proposed ways like unplug the typecover, it’s still disturbing. After communicating with several surface users, I found that the simplest and efficient way to solve this is to unplug the power supply.
To sum up, this might be a problem of instable voltage.
FootnotesThere are many excellent tutorials out there. Some tutorials are too intuitive and it's helpful, but you cannot get it straight on the math details. Some focused on dymestifying math. Some focused on code. I found the best tutorials that give you the conceptual ideas and are possible for implementation without being blind to the math details. Drop a comment if I failed. It would be really appreciable.
Lachlan Chen, "Solutions to tackle Surface typecover touchpad not working," in EarnFromScratch, February 27, 2019, https://www.earnfs.com/en/html/143.htm.
title=Solutions to tackle Surface typecover touchpad not working,
year=February 27, 2019