I also have the same problem. When the touchpad is enabled, it has erratic behavior! I didn't have any problem before the upgrade to 18.04 and also no problem in Windows 10.
My laptop is Asus UX430U and I use Ubuntu 18.4 with kernel 4.15.0-23-generic. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1778087 Title: ELAN1200 touchpad jumps around and disconnects To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778087/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs