Ubuntu 19.10 on Lenovo Miix 520 Touchscreen Not Working

Asked by Tunghim Lam on 2019-11-26


xinput --list
xsetwacom --list devices

No sign of the touchscreen.

Screenshot: https://photos.app.goo.gl/6YZk841RQdyfAXvn9

I've done my research & tried reinstalling a fresh OS many times, no fruit.

I love Ubuntu & the touch interface, would like to see them working together again. Please help me bring my touchscreen back to life! Thank you so much in advance!

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Tunghim Lam (tunghim) said : #2

In that scenario, the touchscreen still worked & appeared in xinput & xsetwacom, just the multitouch gestures didn't work. And I'm the answerer. The problem is different this time.

For my case, the touchscreen doesn't work at all, not even a single touch.

Anyway, thanks for your try!

Do you have the latest BIOS?

Tunghim Lam (tunghim) said : #4

I'm not sure. I used "sudo dmidecode | less" to check & below is the output:

BIOS Information
        Vendor: LENOVO
        Version: 6NCN28WW
        Release Date: 05/14/2018
        Address: 0xE0000
        Runtime Size: 128 kB
        ROM Size: 6144 kB
                PCI is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                EDD is supported
                Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
                Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
                5.25"/360 kB floppy services are supported (int 13h)
                5.25"/1.2 MB floppy services are supported (int 13h)
                3.5"/720 kB floppy services are supported (int 13h)
                3.5"/2.88 MB floppy services are supported (int 13h)
                8042 keyboard services are supported (int 9h)
                CGA/mono video services are supported (int 10h)
                ACPI is supported
                USB legacy is supported
                BIOS boot specification is supported
                Targeted content distribution is supported
                UEFI is supported
        BIOS Revision: 1.28
        Firmware Revision: 1.28

Lenovo support site is saying that there is a BIOS update on 28 Nov 2019. Mine is 14 May 2018.

If update is needed to get my touchscreen back to work, how should I do it? I've googled it but not sure what those tutorials are doing.

I'm not sure, the manual will explain it. There will be a version online no doubt

Tunghim Lam (tunghim) said : #6

There is only an .exe file for BIOS update from Lenovo. Thanks for guiding a way to update BIOS. I'll definitely try to solve the issue in this direction.

Launchpad Janitor (janitor) said : #7

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