I have experienced the same bug using my Dell Laptop and an external Dell monitor. Card is an nvidia 8400gs. Problem exists when xinerama is enabled.
-- Mouse lock/disturbance when moving mouse from one screen to other in Tri-screen xinerama-setup https://bugs.launchpad.net/bugs/593069 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs