The fix for me was to reinstall these two packages: xserver-xorg-input-mouse xserver-xorg-input-vmmouse
(Using this command:) sudo apt-get --purge autoremove xserver-xorg-input-mouse xserver-xorg-input-vmmouse && sudo apt-get install xserver-xorg-input-mouse xserver-xorg-input-vmmouse Here are the versions I'm using: Ubuntu 12.04 x86 (although running on an amd64 processor, oops on my part) xserver-xorg-input-mouse 1:1.7.1-1build3 xserver-xorg-input-vmmouse 1:12.9.0-0ubuntu0.1 -- 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/993724 Title: Left-click stops working after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/993724/+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