Dell XPS 13 touchpad stopped working

I have a Dell XPS 13 Dev edition with 16.04. Today my touchpad stopped working, I think it was right after I unplugged an external screen. Nothing happens if i press or touch the touchpad, the pointer just won't move.

• If I connect an external mouse I am able to use it to move the pointer without problems.

• I know the hardware is not broken because if I boot into Ubuntu 16.04 from a USB stick the touchpad works.

Running

synclient touchpadoff=0

Did not help. Neither did

sudo modprobe i2c_hid

Or adding

grub_cmdline_linux_default= quiet splash acpi=force

to /etc/default/grub.

If i run

less /proc/bus/input/devices

I see my touchpad, and it is also visible in xinput as

⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=13 [slave pointer (2)]
⎜ ↳ Logitech USB Laser Mouse id=10 [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)]

Anyone know what to do?

1 Answer

I managed to get my trackpad working by using libinout instead if synaptics.

Wrote up what I tried here: Dell XPS 13 9350 - Trackpad tap works but trackpad click does not