I started having the exact same problem when I bought my latest Dell laptop. This was infuriating at first, but slowly I got better at avoiding the problem. (St

I started having the exact same problem when I bought my latest Dell laptop. This was infuriating at first, but slowly I got better at avoiding the problem. (Still somewhat infuriating at times.) Periodically I'll disable the trackpad entirely via xinput if it screws up my typing too much.