I also seem to have this bug on Ubuntu 12.04 since the upgrade to HWE Trusty and on Lubuntu 14.04. I also see this bug if my Bluetooth mouse is configured. As soon as I remove my Bluetooth mouse from the configuration left key works agains with other USB mouses and the touchpad.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-evdev in Ubuntu. https://bugs.launchpad.net/bugs/828893 Title: left mouse button ignored To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/828893/+subscriptions _______________________________________________ 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