Package: xserver-xfree86 Version: 4.2.1-14 Severity: normal File: /usr/X11R6/man/man5/XF86Config-4.5x.gz Saying The Identifier entry specifies the unique name for this input device. isn't good enough. You must also say that one cannot just use any old names one wants. For instance try using "Morse mouse" instead of "Generic mouse".