Installing the xserver-xorg-input-evdev also worked for me!!! In my case I was using an a4tech x7 and a dell studio 15 laptop.
-- Keyboard special keys interfere with mouse https://bugs.launchpad.net/bugs/636311 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-evdev in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp