Bug 397269

Summary:	Touchpad is not working in Kde neon 18.04
Product:	[KDE Neon] neon	Reporter:	Ivan Safonov <safonov.ivan.s>
Component:	Live/Install images	Assignee:	Neon Bugs <neon-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	jr, nate, neon-bugs-null, nicktelindert, p.hamal, sitter
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Ivan Safonov 2018-08-08 11:41:23 UTC

I have Dell Latitude 7490 laptop. It has touchpad "DELL081C:00 044E:121F Touchpad". And it doesn't work in Kde neon 18.04 because of these changes in neon-settings package https://packaging.neon.kde.org/neon/settings.git/commit/?h=Neon/release&id=0229fa88fd4139b6a6f04b27c64aa4fb9f86e8e3

I can fix it by removing links or by installing synaptics driver which is default in 16.04.

I think it would be better to leave libinput by default. Yes, KCMs do not support it, but it just works out of the box.

Comment 1 Harald Sitter 2018-08-08 12:08:40 UTC

Does it work with 16.04?

Comment 2 Ivan Safonov 2018-08-08 12:16:48 UTC

Yes, it works with Ubuntu 16.04 (was pre-installed), Kde neon 16.04, Ubuntu 18.04.

Comment 3 Harald Sitter 2018-08-08 12:47:06 UTC

Seems a bit strange that evdev would regress. Can you check what the following command outputs on 16.04:

grep -e "Using input driver" /var/log/Xorg.0.log

Comment 4 Ivan Safonov 2018-08-08 12:49:59 UTC

ivan@neon:~$ grep -e "Using input driver" /var/log/Xorg.0.log
[     6.797] (II) Using input driver 'evdev' for 'Power Button'
[     6.810] (II) Using input driver 'evdev' for 'Video Bus'
[     6.811] (II) Using input driver 'evdev' for 'Power Button'
[     6.811] (II) Using input driver 'evdev' for 'Sleep Button'
[     6.812] (II) Using input driver 'evdev' for 'Integrated_Webcam_HD: Integrate'
[     6.813] (II) Using input driver 'evdev' for 'G-Tech Wireless Dongle'
[     6.813] (II) Using input driver 'evdev' for 'G-Tech Wireless Dongle'
[     6.814] (II) Using input driver 'evdev' for 'DELL081C:00 044E:121F Mouse'
[     6.815] (II) Using input driver 'synaptics' for 'DELL081C:00 044E:121F Touchpad'
[     6.909] (II) Using input driver 'evdev' for 'DELL081C:00 044E:121F UNKNOWN'
[     6.909] (II) Using input driver 'evdev' for 'DELL081C:00 044E:121F UNKNOWN'
[     6.911] (II) Using input driver 'evdev' for 'Intel HID events'
[     6.911] (II) Using input driver 'evdev' for 'Dell WMI hotkeys'
[     6.912] (II) Using input driver 'evdev' for 'AT Translated Set 2 keyboard'

Comment 5 Ivan Safonov 2018-08-08 13:09:03 UTC

Btw,'DELL081C:00 044E:121F Mouse' is a pointing stick

Comment 6 Harald Sitter 2018-08-08 13:35:04 UTC

I think we'll pull in synaptics until we move to libinput, seeing as that fixes the problem

Comment 7 Petr Hamal 2018-08-08 19:47:17 UTC

I can confirm the same problem on Lenovo x230. The touchpad started working after xserver-xorg-input-synaptics package was installed.

Comment 8 Nick te Lindert 2018-08-09 10:37:41 UTC

I can confirm that my touchpad isn't working on my inspiron 15 3000. Which came preinstalled with ubuntu. I will try to install the synaptic drivers from xorg to see if that also solves the problem. The generic 18.04 is working correctly.

Comment 9 Nate Graham 2018-08-09 19:57:54 UTC

If you're going to avoid libinput, you definitely need synaptics, not just evdev.

Comment 10 Harald Sitter 2018-08-10 10:08:49 UTC

Update should be going live in the next couple of hours, assuming it passes auto QA. ISO will be refreshed probably in the next couple of days (everyone's away for our annual conference, so things are a bit slow)

https://packaging.neon.kde.org/neon/seeds.git/commit/?h=Neon/release-lts_bionic&id=674b5776b21445f8b617c8502a2c369244d906b3