1. For adding psmouse.elantech_smbus=0 parameter to boot
  2. echo 'GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX psmouse.elantech_smbus=0"' | sudo tee /etc/default/grub.d/elantech.cfg
  3. sudo update-grub
  4. For deleting psmouse.elantech_smbus=0 parameter from boot
  5. echo 'GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX psmouse.elantech_smbus=0"' | sudo tee /etc/default/grub.d/elantech.cfg
  6. sudo update-grub

psmouse.elantech_smbus=0 parameter to boot