Hi Malcolm, This sounds like it might be a hardware issue, I've seen this sort of behaviour before with failing/damaged touch screens; to test that could you install the finger paint app from the store, and try drawing over the problematic area, if that area of the touch screen is damaged you'll probably see the line you're drawing jumping from one side of the damaged area to the other.
** Changed in: ubuntu-system-settings (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1631860 Title: Keyboard Touch sensitivity of certain lettes, To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-system-settings/+bug/1631860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs