I also have a matrox g550 agp video card and using xinerama, and I'm also seeing this problem with the mouse suddenly jumping to the primary screen. At that point it becomes hard to get on the second screen, as the cursor keeps jumping back. Grabbing a window and moving it between the two screens fixes the problem until it happens again.
I also am getting the messages in my log: miPointerWarpCursor: Invalid input device pointer miPointerUpdateSprite: Invalid input device pointer miPointerConstrainCursor: Invalid input device pointer -- [multi screen] mouse position sometimes wrong https://bugs.launchpad.net/bugs/363375 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
