I can confirm that I see the same on Dell Lattitude 7370, Ubuntu 16.04,
kernel 4.4.0-38-generic.
$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ELAN Touchscreen id=10 [slave pointer (2)]
⎜ ↳ ImPS/2 Generic Wheel Mouse id=13 [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)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ Integrated_Webcam_HD id=11 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=12 [slave keyboard (3)]
↳ Dell WMI hotkeys id=14 [slave keyboard (3)]
↳ DELL Wireless hotkeys id=15 [slave keyboard (3)]
>From dmesg:
[ 4.806149] input: ImPS/2 Generic Wheel Mouse as
/devices/platform/i8042/serio1/input/input6
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You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-input-synaptics in Ubuntu.
https://bugs.launchpad.net/bugs/1590590
Title:
Touchpad not recognized on Dell Latitude E7470 Ultrabook
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1590590/+subscriptions
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