I have the exact same, annoying (how small is enough?) issue. In my case, I use a laptop 1280x800 screen together with a 1280x1024 desktop screen.
There's this forum post where you can the issue is discussed as well, though there's not much useful info there: http://ubuntuforums.org/showthread.php?t=1170588 This issue is could very well be encountered the first time you boot a new Ubuntu installation if you have both screens plugged. -- Mouse disappears into dead area when using asymmetrical dual screen https://bugs.launchpad.net/bugs/387795 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