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.
Did not help. Neither did
sudo modprobe i2c_hid
grub_cmdline_linux_default= quiet splash acpi=force
If i run
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?