It's unlikely to be xinput's fault. The video driver would be a better guess.
However, it's also possible there's a conflict with the glx in ia32-libs. Can you please temporarily uninstall ia32-libs and see if you can reproduce the bug? ** Package changed: xinput (Ubuntu) => fglrx-installer (Ubuntu) ** Changed in: fglrx-installer (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/755282 Title: DeathAdder 3500DPI mouse lag when dragging window -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs