Why does my cursor jump when typing?

When typing in Ubuntu my cursor jumps around and its not application specific. It doesn't matter or Im filing in a web form, writing an e-mail or using LibreOffice or Lyx. Im using a Sony Vaio 64bit machine.

I read a previous question (link below) on this subject which indicates it may have something to do with the touchpad settings. As this has occurred in previous Ubuntu distros Im guess it is somekind of hardware issue.

Solution 1:

This problem was driving me bonkers too. Finally I went to the Ubuntu Software Center, entered "touchpad" in the search box, found "Synaptiks" touchpad manager and installed it. Set it to start up at boot. Set it to lock touchpad when typing and set the delay time to 2 seconds. My problem is gone. It was so bad that I was looking for a non Ubuntu based distribution to replace the Ubuntu OS I have been using. Now I am very happy again. The old touchpad manager was supposedly sat to lock the touchpad when typing but it really was not. Good luck.

Solution 2:

Changing the cursor theme back to the default Adwaita (theme) in My Unity resolved this along with lowering the pointer speed and sensitivity in system settings >> mouse and touch-pad

Solution 3:

Try this, it worked for me Lenovo thinkpad L460

syndaemon -i 3 -d -t -k

syndaemon monitors keyboard activity and disables the touchpad when the keyboard is being used.

• -i 3 will wait 3 seconds after the last key press before enabling the touchpad (default is 2.0s).

• -d starts syndaemon at the background.

• -t disables tapping and scrolling, not mouse movements, in response to keyboard activity.

• -k ignores modifier keys when monitoring keyboard activity.