Laptop keeps scrolling down on its own

[Zhi Xin Tan]

Recently, my computer will keep scrolling down by itself. It will just scroll to the bottom and it is impossible to scroll up. I don’t use an external mouse and just use the mousepad. I have zero clue on what is causing it but it is unlike that my touchpad is causing it. Pressing shift tab will stop it temporarily until the problem comes back again.

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