[Dell Latitude 7370] Touchpad edge scrolling doesn't work

[Taihsiang Ho]

Dell Latitude 7370 (CID 201601-20440)
Ubuntu 16.04.1

The touchpad on this system was detected as a PS/2 mouse.

[Steps to Reproduce]

1. Install 16.04.1, boot to desktop
2. Try to do edge scrolling.

[Expected result]

- Edge scrolling should work.

[Actual result]

- The touchpad was detected as PS/2 mouse, edge scrolling won't work

[Additional Information]

xinput:

⎡ 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)]

--------------

/proc/bus/input/devices shows

I: Bus=0011 Vendor=0002 Product=0005 Version=0000
N: Name="ImPS/2 Generic Wheel Mouse"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input6
U: Uniq=
H: Handlers=mouse0 event6
B: PROP=1
B: EV=7
B: KEY=70000 0 0 0 0
B: REL=103

--------------

dmesg | grep -i mouse

[ 2.216943] mousedev: PS/2 mouse device common for all mice
[ 4.934277] input: ImPS/2 Generic Wheel Mouse as /devices/platform/i8042/serio1/input/input6

-----------------------------------------------

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-31-generic 4.4.0-31.50 [modified: boot/vmlinuz-4.4.0-31-generic]
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 3393 F.... pulseaudio
Date: Thu Oct 27 15:31:45 2016
HibernationDevice: RESUME=UUID=0b121a5e-fc97-4876-b2ad-c95f27d78945
InstallationDate: Installed on 2016-10-27 (0 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: Dell Inc. Latitude 7370
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic.efi.signed root=UUID=e9e38960-7d96-40bc-ad11-76180356682e ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-31-generic N/A
 linux-backports-modules-4.4.0-31-generic N/A
 linux-firmware 1.157.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/24/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.3
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.1.3:bd02/24/2016:svnDellInc.:pnLatitude7370:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude 7370
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.