Question: The cursor jump frequently while typing.
Answer: Press the key Fn+F3 can disable the touchpad.
After typing, press Fn+F3 again to enable the touchpad.
Question: How to identify the vendor of the Touchpad?
Answer: Please tap the sensitive area on the upper right corner and lower right corner of Sentelic touchpad, if the scroll bar can slide normally, then the vendor is Sentelic and it does not require any driver. The other vendor is Synaptics. If you want to use the function of scroll bar, please find the Synaptics website to download the driver.
P.S.: Synaptics Driver: