That seems the same issue than bug #934770 the change was discussed described by Chase on https://lists.ubuntu.com/archives/ubuntu-desktop/2012-February/003694.html
"* When the user checks "Enable mouse clicks with touchpad", I believe the "Synaptics Locked Drags" setting should be true. ... If it's not entirely clear what the change is, try setting the property and playing with it. Enabling the property resolves the problem of trying to drag farther than your touchpad is wide or tall." Reassigning to xserver-xorg-input-synaptics ** Package changed: gnome-settings-daemon (Ubuntu) => xserver-xorg-input-synaptics (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/934184 Title: Draging window with a mousepad needs extra tab for release (locked drags)12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/934184/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs