Ubuntu 20.04 Touchscreen on Lenovo Yoga

Touchscreen not working on Lenovo Yoga Laptop running 20.04 LTS released today.

Looking forward to a solution to this issue.

Solution 1:

I had the same issue so a few search.

I went to

https://linuxwacom.github.io/

and chose the kernel driver which led to

https://github.com/linuxwacom/input-wacom/wiki/Installing-input-wacom-from-source

and basically followed the instructions and did a reboot, touch input started to work again.

For my pen input, it was working without any fix required.

Solution 2:

This is a half-comment, but it wouldn't fit or be as readable as convenient if posted as such.

Possible causes

There are a several possible causes for the failure. I am listing here a few, while waiting for your further info (see below).

1. Power management issues. Drivers often have options for this.
2. Newer kernel required. This is easily solved by updating the system, $ sudo apt update - $ sudo apt upgrade - reboot.

Further info

Please post:

1. The output of a few commands below (you might need to install neofetch).

   $ uname -a
   $ neofetch
   

2. The complete model (e.g., Lenovo Yoga Slim 7 15IMH05)

3. The output, when the touchscreen is working (WKC) and when it is not (NKW), of (you may need to install libinput-tools)

   $ xinput
   $ ubuntu-drivers devices
   $ sudo lspci -vnn
   $ hwinfo
   $ lsmod
   $ sudo libinput list-devices
   

   Note 1: the output of hwinfo and lsmod is long. You could use pastebin.

   Note 2: sudo is important in front of lspci, as it lists devices capabilities, including power management, see above.

4. Any information that helps identifying: 1) the drivers used by the touchscreen, by comparing WKC and NKW, 2) hardware, 3) problems (dmesg, journalctl, etc.)

5. Did you try the suggestion here?

Related

1. Touchpad not working on Lenovo Yoga Slim 7 15IMH05
2. https://askubuntu.com/a/1358477/226614
3. https://forums.lenovo.com/t5/Ubuntu/Ideapad-5-15ARE05-Touchscreen-not-working/m-p/5017099