Comment 44 for bug 1787775

That's strange then, maybe the old driver is still builtin in https://people.canonical.com/~khfeng/lp1787775/.

Kai is waiting for the driver to be accepted by Linux's maintainers before applying it to Ubuntu's kernel.

If you want to get the touchpad working beforehand on your Yoga 530-14ARR, I suggest installing Ubuntu 18.04, this kernel:

  https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.9/

Then the i2c-amd-mp2 driver in DKMS version with the following commands:

  sudo apt install build-essential dkms
  git clone https://github.com/Syniurge/i2c-amd-mp2.git
  cd i2c-amd-mp2
  sudo ./dkms-install.sh

Reboot and the touchpad and touchscreen should work.