From the following links, I suspect the bug to be in xserver-xorg-input-synaptics package.
https://bugs.archlinux.org/task/8732
http://www.freebsd.org/cgi/query-pr.cgi?pr=116664&cat=ports
From the following links, I suspect the bug to be in xserver- xorg-input- synaptics package.
https:/ /bugs.archlinux .org/task/ 8732
http:// www.freebsd. org/cgi/ query-pr. cgi?pr= 116664& cat=ports