I really disappointed by this changes in kernel 4.4.0-64. Before I had
working touchpad(tap as click, two finger scrolling) with stick which
was worked out off box. Thing is it is only possible to change using
Unity Tweak Tool. But now it is completle useless. I disable touchpad
permanantly for time beeing. Because palm rejection is completely
disaster, it recognize mypalms as two fingre touches. Before everything
worked with evdev. Currently evdev driver cannot handle touchpad it just
recognize taps and touchpad button clicks on my Latitude e7470. :( I
hope somebody can publish working configuration or some patch that help
me revert back to old "ImPS/2 BYD TouchPad" or make evdev working again.
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https://bugs.launchpad.net/bugs/1590590
Title:
Touchpad not recognized on Dell Latitude E7470 Ultrabook
Status in linux package in Ubuntu:
Triaged
Status in xserver-xorg-input-synaptics package in Ubuntu:
Confirmed
Bug description:
Expected: Touchpad settings available in Mouse & Touchpad Settings
dialog
Actual result: Touchpad settings missing entirely
Details:
The touchpad on my Dell Ultrabook (Latitude E7470) functions mostly.
The settings for the touchpad are not available at all in the Mouse
and Touchpad settings (see http://i.imgur.com/YRGiOrj.png).
Two-finger scrolling works as expected except it's using "Natural
Scrolling" by default and there is no way to change it.
xinput list does not display a touchpad at all:
⎡ Virtual core pointerid=2[master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4[slave pointer
(2)]
⎜ ↳ ELAN Touchscreenid=11 [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 Buttonid=6[slave
keyboard (3)]
↳ Video Bus id=7[slave
keyboard (3)]
↳ Power Buttonid=8[slave
keyboard (3)]
↳ Sleep Buttonid=9[slave
keyboard (3)]
↳ Integrated_Webcam_FHD id=10 [slave
keyboard (3)]
↳ AT Translated Set 2 keyboardid=12 [slave
keyboard (3)]
↳ Dell WMI hotkeysid=14 [slave
keyboard (3)]
↳ DELL Wireless hotkeys id=15 [slave
keyboard (3)]
/proc/bus/input/devices lists the device as a "Generic Wheel Mouse"
Output of `lsb_release -rd`:
Description: Ubuntu 16.04 LTS
Release: 16.04
xserver-xorg-input-synaptics version information:
xserver-xorg-input-synaptics:
Installed: 1.8.2-1ubuntu3
Candidate: 1.8.2-1ubuntu3
Version table:
*** 1.8.2-1ubuntu3 500
500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
100 /var/lib/dpkg/status
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