Hi, I am experiencing a similar issue with the new Lenovo Yoga 720 15" that just came out (April 2017)
As far as I can tell the touchpad is not detected. I have tried all of the option suggested above to no avail. Please let me know if I should file a new bug or if I can provide any additional troubleshooting information. Thanks. $ xinput --list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ Wacom HID 50FE Finger id=11 [slave pointer (2)] ⎜ ↳ Logitech G300s Optical Gaming Mouse id=15 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Video Bus id=8 [slave keyboard (3)] ↳ Power Button id=9 [slave keyboard (3)] ↳ EasyCamera id=10 [slave keyboard (3)] ↳ Ideapad extra buttons id=12 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=13 [slave keyboard (3)] ↳ Logitech G300s Optical Gaming Mouse id=14 [slave keyboard (3)] -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1641393 Title: 'Elan Touchpad' not detected in Ubuntu 16.04.1 Gigabyte P57K-965-603S Fresh install Status in linux package in Ubuntu: Confirmed Bug description: On a fresh install of Ubuntu 16.04.1 (July 27 2016, downloaded November 13 2016 from the official site) on the above machine, the Elan touchpad was not detected at all. An external mouse works perfectly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1641393/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp