I have some weird issues with my touchpad. When I tap on it the click doesn’t work and I can’t scroll. Funny thing is that it works sometimes and it works in LightDM and Windows, so it is no hardware issue. Another thing I’ve noticed is, that when I hold the delete button to delete text it stops at some point, so I have to press the delete button multiple times. Also, when I use yaourt in the terminal and I want to scroll up through the package list, it scrolls automatically back to the bottom. Maybe those issues are related.

I almost can’t use my laptop anymore because of this. Can someone help me?

I installed GNOME now and I realized that it’s a Cinnamon related problem. Under GNOME the touchpad works, but they keyboard issue and the issue in yaourt persists.