Lenovo Laptop touchpad not found

Hi all,
I’ve just installed Manjaro KDE and would like to use the touchpad options available in the settings menu. However, I just get a big red box saying “No touchpad found” which is pretty odd, the touchpad is certainly there. Even weirder, running xinput gives the following:
⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ AUI165C:00 044E:121E Mouse id=12 [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)] ↳ Ideapad extra buttons id=11 [slave keyboard (3)] ↳ AUI165C:00 044E:121E Keyboard id=13 [slave keyboard (3)] ↳ AUI165C:00 044E:121E id=14 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=15 [slave keyboard (3)] ↳ Integrated Camera: Integrated C id=9 [slave keyboard (3)]
It seems to be recognising my touchpad as a mouse? There isn’t a mouse connected to the system, just the touchpad built in to the unit, and I can’t understand why it’s doing that?

Thanks in advance!

It seems to be treated as a mouse, at least on my system (a Lenovo T440).
A shot in the dark but does

sudo modprobe -r psmouse && sudo modprobe -a psmouse

do anything to help?

More system info would also help e.g.:

inxi --full --admin --verbosity=7 --filter --no-host

Also: How to provide good information

Cheers and Welcome! :slight_smile:

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Hola he probado varias recomendaciones y no había dado con la solución hasta que revisé este listado de arch Arch-Lenovo, y buscando la máquina más parecida, encontré que para que funcione el touchpad debes agregar el parámetro “pci=nocrs” al kernel.
Para probar si esto soluciona tu problema, presiona F4 o tecla DEL al inicio. Y en la configuración del GRUB presiona la tecla “e”.

Luego busca la línea que comienza con la palabra “linux” y con la flecha derecha ve hasta el final de la línea y agrega pci=nocrs.

Luego presiona las teclas Control + x. El sistema iniciará y puedes probar si funciona el touchpad.
Si esto funciona el siguiente paso es hacer permanente el cambio

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I had to translate everything but it worked for me, how can i make the configuration permanent?

To make the change permanent, do the following:

And voila, enjoy the touchpad.

What we did is modify the reference file to configure GRUB, and update so that it takes the modifications.

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Please read this:

Especially this bit: