This has been happening reliably on my Lenovo Y700 15ISK since 15.10... Sometimes it shows up as ETPS/2, sometimes PS/2, sometimes Logitech Wheelmouse... Most of the time it shows as "PS/2 Logitech Wheel Mouse" but none of the multitouch (2 finger scroll, 3 finger middle-click) can be set up. synclient says no device is present.
This has been happening reliably on my Lenovo Y700 15ISK since 15.10... Sometimes it shows up as ETPS/2, sometimes PS/2, sometimes Logitech Wheelmouse... Most of the time it shows as "PS/2 Logitech Wheel Mouse" but none of the multitouch (2 finger scroll, 3 finger middle-click) can be set up. synclient says no device is present.