Touchscreen on the Lenovo ThinkPad L390 does not work

Asked by Donatas

I have Lenovo ThinkPad L390 with touchscreen and it works fine on Windows, but not on Ubuntu. I've bought this laptop trusting the Ubuntu certification, because Canonical-tested laptop included touchscreen as well, but this failed me. I've tried Ubuntu LTS 18.4 and 19.4.

Other info:
- `xinput` is showing touchscreen: "Raydium Touchscreen id=10 [slave pointer (2)]"
- if I list device props using `xinput list-props 10`, I see device: `Device Node (277): "/dev/input/event9"`
- `cat /dev/input/event9` does not produce anything
- `xinput --test-xi2 --root` does not produce any touchscreen events, even though events from other devices are successfully shown

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Launchpad Janitor (janitor) said :

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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Donatas (donce-lt) said :

I've not managed to solve this yet and I'm not the only one impacted by this:

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Donatas (donce-lt) said :

In addition to LTS 18.4 and 19.4, I've also tried it with 19.10 and it doesn't work as well.

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Po-Hsu Lin (cypressyew) said :

please open a bug report with "ubuntu-bug linux" command, which will collect vital hardware information (like the device id) for it.
FAQ #2193: “XXXX is broken, I need to file a bug”.

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