Comment 31 for bug 375905

This occurs with my Lenovo T460 with Ubuntu 16.04. It happens quite frequently, especially when using the trackpoint buttons (normal mouse function can be restored temporarily by switching to the console (Alt + F1) and back). The problem can be prevented by disabling the Trackpoint and its buttons in the BIOS. This may be somewhat hardware related, because while all parts of the Trackpoint and Trackpad usually function normally and the symptoms seem to be a software/window focus problem, there are also similar window focus issues with Windows 10.