Why is my scroll not working on touchpad?

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Tags

1. #sound
2. #click
3. #mouse
4. #hardware
5. #panel
6. #different
7. #scheme
8. #touchpad
9. #users
10. #changing
11. #under
12. #worked
13. #scrolling
14. #working
15. #control
16. #pointers
17. #pointer
18. #select