I use mouse most of time, but sometimes I’d feel like using touchpad for scrolling in some scenarios (relaxing a little). In that case, I use touchpad to scroll in system menu (Grid), but it only works when it wants.
It may sound funny. But it’s what happens, I think it only works for few moments after booting the OS. After some time it seems like the touchpad is locked, and I can’t scroll. Neither left or right.
But funny thing, Is the fact that I can’t lock the touchpad because I don’t have any hardware control.