cursor jumps when moving (and some other times)

Solution 1:

I use VirtualBox (4.2.4r81684) on a Windows 7 host, had ubuntu desktop 12.04 guest, upgraded to 12.10 recently, and experienced this mouse jumping you describe, even after updating guest additions.

This helped me out:

Long story short: this bug will be fixed eventually. You can either run these commands on EVERY boot (can put into a script in your .bash_profile, or something similar):

xinput set-prop "VirtualBox mouse integration" "Coordinate Transformation Matrix" 0.5 0 0 0 0.5 0 0 0 1.0
xinput set-prop "VirtualBox mouse integration" "Coordinate Transformation Matrix" 1.0 0 0 0 1.0 0 0 0 1.0

OR you can install the bug fix:

sudo apt-add-repository ppa:a7x/bug1041063
sudo apt-get update
sudo apt-get upgrade

I installed the fix, and am happy to say that the problem has been resolved for me.

Solution 2:

If you are on a VirtualBox, and your issue is with Ubuntu 12.10. You can avoid this issue by pressing the right hand CTRL + I also called host-i.
This enables and disables mouse integration, because the issue is caused by a mouse integration problem between your host machine and VirtualBox.

If you are not using a VirtualBox virtual machine to run Ubuntu 12.10, but you are using a laptop with a touch pad, here is a website to look at for possible fixes:

You can also disable or enable a touch pad, and many other devices, by following the instructions found in this link.

Other than this, I have not found any other resolutions for this issue.