Thanks Pedro, disabling the mtp plugin immediately makes the mouse work correctly again.
And yes - it's a case of an old Mighty Mouse so it seems related to #559892, indeed. -- Launching Rhythmbox disables external usb mouse https://bugs.launchpad.net/bugs/663098 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