Ubuntu 20.04 touchpad doesn't work on new Lenovo Ideapad

Question

I have just bought a new Lenovo laptop. I've installed the Ubuntu 20.04, but my touchpad doesn't work.

Here is the result of xinput command:

Do you have any idea how to fix it?

Answer 1

1. $xinput shows the available input devices in the machine. but, the machine hava a data for it. So,Maybe it is hardware(touchpad) problem.
2. Maybe Hardware is good,just reboot and try any other OS.
3. else, see the settings for touchpad(Settings > mouse and touchpad> touchpad) is enable/disable. Many lenovo laptop's F6(function key) for enable or disable touchpad.

Answer 2

I have a Lenovo t420 that has touchpad problems. I run this script at startup:

DEVICENUM=$(xinput | grep SynPS/2 | grep 'id=' |  cut -d= -f2 | cut -b 1,2)
printf "\033c"
xinput set-prop $DEVICENUM "Device Enabled" 0
xinput set-prop $DEVICENUM "Device Enabled" 1
echo "done"

Answer 3

sudo gedit file /etc/default/grub

Replace line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" with GRUB_CMDLINE_LINUX_DEFAULT="pci=nocrs quiet splash"

Save file /etc/default/grub

Execute update-grub

Reboot

As it's commented here

lenovo IdeaPad-3-14ARE05 Touchpad not working. Ubuntu 20.04

It works for me on 20.04

Answer 4

I have Ubuntu 20.04 and I have faced the same problem. My touchpad was not working after changing my OS from Windows 11 to Ubuntu 20.04/18.04. In Settings, only the mouse options were visible, not the touchpad ones.

If the problem is with your hardware, you must visit the nearby customer care service. If it's not a hardware issue, then there is no problem with your drivers also.

All you need to do is just make a small change on your default /etc/default/grub file. That's how I resolved the problem. Follow these steps:

1. Open a terminal.

2. Run the following command:

   sudo gedit file /etc/default/grub
   

3. The /etc/default/grub text file will be opened. If it is empty, navigate to its adjacent tab.

4. Replace the line:

   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
   

   with:

   GRUB_CMDLINE_LINUX_DEFAULT="pci=nocrs quiet splash"
   

5. Click on Save and return to the terminal.

6. Run the following command:

   sudo update-grub
   

7. Reboot.

Your issue will be resolved. Your touchpad will be working.