I struggled with this for some time. With xinerama, I experienced this
cursor wierdness, and other symptoms too. Xrandr was failing, and due to
this, my power indicator also went missing, and I couldn't use Unity 3d
- it was reverting me to Unity 2d. I tried twinview and also xinerama,
and I wasn't
This happens to me too. I have 2 screens, and if I move my cursor from the left
screen to the right, the cursor jumps all the way to the very right edge of the
right screen. Also if I set the launcher to auto-hide, I will not be able to
reveal the launcher again. If I use twinview it works fine,
