Dell xps 15 9570 - Touchpad Problem

[pmartu12]

Hello Guys,

I have a dell xps 15 9570 with ubuntu 18.04 . It works fine but the only problem is the touchpad that is not detected.

This is the output xinput:

Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ USB Optical Mouse id=12 [slave pointer (2)]
⎜ ↳ Wacom HID 488E Pen stylus id=13 [slave pointer (2)]
⎜ ↳ Wacom HID 488E Finger touch id=14 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=19 [slave pointer (2)]
⎜ ↳ Wacom HID 488E Pen eraser id=20 [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)]
↳ Sleep Button id=10 [slave keyboard (3)]
↳ Integrated_Webcam_HD: Integrate id=11 [slave keyboard (3)]
↳ Intel HID events id=15 [slave keyboard (3)]
↳ Intel HID 5 button array id=16 [slave keyboard (3)]
↳ Dell WMI hotkeys id=17 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=18 [slave keyboard (3)]

I have also tried to set acpi=force and using JackHack96 image, but always the same problem.

Has anyone solved this issue?

Regards

[vanadium]

Is this a fresh installation? A touchpad is seen ( ⎜ ↳ SynPS/2 Synaptics TouchPad id=19 [slave pointer (2)]) but apparently, it is not working. By default on a fresh linux 18.04, you would be using libinput drivers. The older generation of drivers is synaptics. To tell which driver you use, you can issue the commands "dpkg -l | grep synaptics" and "dpkg -l | grep libinput". No output means the driver is not installed.

Are you using Wayland or X-org? The command "echo $XDG_SESSION_TYPE" will tell you which display server you are running. By default on a fresh installation of Ubuntu 18.04, you will be using xorg.

[pmartu12]

Yes I'm using xorg libinput. This is the output:

dpkg -l | grep libinput
ii libinput-bin 1.10.4-1 amd64 input device management and event handling library - udev quirks
ii libinput10:amd64 1.10.4-1 amd64 input device management and event handling library - shared library
ii xserver-xorg-input-libinput 0.27.1-1 amd64 X.Org X server -- libinput input driver

I should see two touch pad like you can see in this guide https://www.dell.com/support/article/uk/en/ukdhs1/sln308258/precision-xps-ubuntu-general-touchpad-mouse-issue-fix?lang=en.
I have also tried the guide above but nothing.

[vanadium]

You could try switching to the synaptics driver with the command "sudo apt install xserver-xorg-input-synaptics". You can remove this to revert. Is this a fresh install or an upgrade? Does the touchpad work in a live session, i.e. a session loaded from an install CD or USB?

[pmartu12]

I have tried but always the same problem. Into live session from USB, the same problem. If I enter into UEFI bios, the touchpad works correctly.

[gregory7]

I have exactly the same problem with a xiaomi laptop the touchpad works in the bios but doesn't work in either a live boot or the usual xorg gnome boot - very strange.