A workaround for Ubuntu 15.04 is to add a new service to systemd which reloads the module after suspend:
sven@:/etc/systemd/system$ more touchscreen.service [Unit] Description=Restore touchscreen after suspend After=suspend.target [Service] Type=simple ExecStartPre=/sbin/modprobe -r hid_multitouch ExecStart=/sbin/modprobe hid_multitouch [Install] WantedBy=suspend.target sven@:/etc/systemd/system$ sudo systemctl enable /etc/systemd/system/touchscreen.service -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1393079 Title: Touchpad not working after suspend/resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1393079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs