I have a similar issue. I'm running 12.04 on a ThinkPad T410s. My USB mouse behaved very erratically when docked, randomly moving across the screen every few seconds and registering false clicks, rendering the system useless. However I am able to duplicate the problem running undocked when the laptop screen is closed. When the screen is opened (and disabled, since I'm using an external monitor) then my USB mouse works fine.
Perhaps the issue is actually that the trackpad is not disabled when the screen is closed? Can others who are seeing problems with USB mice see if it still happens when the laptop is open or only when closed? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/994743 Title: After 11.10 > 12.04 upgrade on Thinkpad W520 - mouse input broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/994743/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs