I have been experiencing a problem with the mouse pointer on a system running Ubuntu 16.10.
When the mouse is moved to the left edge of the screen, the pointer graphic will freeze a short distance away from the left edge, usually between 10 and 50 pixels away, and will not move again until the mouse is moved to the right slightly.
The actual mouse coordinates must still be updating as if the mouse is moved towards the top-left of the screen, the tooltips for any launcher icons appear in turn as if the mouse pointer is passing over them. When the mouse is then moved slightly to the right, the frozen pointer will suddenly jump to wherever the mouse really was pointing.
I observed this behaviour in standard Ubuntu and Xubuntu 16.10. When I reinstalled with 16.04 LTS, the problem went away.
This isn't related to sticky edges, as it made no difference if I enabled or disabled that setting.
Has anyone else had this issue and determined the cause, or a solution?