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2 Posts

03-19-2019

DE

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-03-19, 8:56 AM

After months without any troubles with sleep mode or touchpad on Ubuntu 18.10, the last updates ( I cant say if it was the firmware or another software update) it became unusable again. What helped me was this article:  https://github.com/BelBES/thinkpad_x1_carbon_6th_linux

 

I just had to do this:

 

  1. Edit the /etc/modprobe.d/blacklist.conf file and comment out following line:
# blacklist i2c_i801

 

Touchpad is working again!

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33 Posts

03-11-2018

DE

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-03-20, 9:32 AM

@dandv: The changelog is online (look into the "ReadMe for BIOS Update Utility"). Both 1.36/1.37 only seem to address security issues:

<1.37>
 UEFI: 1.37
- [Important] Update includes a security fix.

<1.36>
 UEFI: 1.36
- [Important] Update includes a security fix.
- (New) Updated the Diagnostics module to version 04.05.000.

@kaeltab: What you experienced was first the removal of the blacklisting in order to support new hardware like our x1. However, due to regressions (which are now fix) it was readded again -> it stoped working for you/us without manually editing the blacklist (see https://bugs.launchpad.net/hwe-next/+bug/1786574 ). It should be removed again soon.

Back to the issue: the patches from aaronma are still not merged upstream and are waiting for review... However, I am using self-build kernels and both trackpoint/touchpad are working fine and survive every suspend/resume. (20KG model) 

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1 Posts

06-03-2019

DE

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-03, 15:43 PM

Hi,

 

I hope this is the right place to ask. I am a bit new to Linux and just installed Ubuntu 18.04 on my new Thinkpad X1 Carbon.

 

At first, the touchpad did not react properly, so I I commented out # blacklist i2c_i801 in /etc/modprobe.d/blacklist.conf and added psmouse.synaptics_intertouch=1 to /etc/default/grub

 

Now, the touchpad generally works, but it is still behaving erratically, mainly the the "tap to click" feature: It works sometimes, then stops working for minutes, then works again without any apparent reason... 

 

Is this a known problem, and how can I get it to work consistently?

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3 Posts

06-05-2019

PL

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-05, 12:03 PM

I have exactly same problem here - i solved the touchpad's lazy reaction issue, but the bugging tap to click" feature drives me crazy. (X1C6)

Did you manage to solve it? Is there any way? It sucks that lenovo doesnt support this.

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6 Posts

01-30-2019

DE

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-05, 19:15 PM

@AuditorOfRealit

There is no need to commented out # blacklist i2c_i801 in /etc/modprobe.d/blacklist.conf.

Everything you need to do in order to have a proper working touchpad is to edit the /etc/default/grub file and change the line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

 

To this line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash psmouse.synaptics_intertouch=0"

It is important to set it to 0 not 1, in order to get it to work.

After that you need to execute this command in the terminal:

sudo update-grub

Then after a restart everything should work as expected (tested on Mint).

In combination with the most recent bios update and touchpad and trackpoint firmware update it did the job for me (avaliable on the lenovo site).

Other sources related to this issue (from the last page):
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791427

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791427/comments/94

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3 Posts

06-05-2019

PL

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-05, 22:54 PM

Well, actually setting quiet splash psmouse.synaptics_intertouch from 1 to 0 was the solution to unfreeze my touchpad after sleep and etc. To be sure, I rechecked it and set the quiet splash psmouse.synaptics_intertouch=0 - my touchpad was broken again. But apparently we know how to fix this, the remaning problem is that tap to click rarely works.

 

 

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11 Posts

07-13-2011

Bremen, Germany

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-06, 7:22 AM

Setting `psmouse.synaptics_intertouch from 1 to 0` does not work for my up-to-date setup (Ubuntu 18.04, Kernel 4.15.0-51-generic, BIOS 1.38), while `0` breaks the touchpad-behavior so much, that using it is useless, as the the cursor only reacts here and there for merely a second and then freezes again. Setting to `1` gets the trackpad working, but only if the trackpoint is turned off in the BIOS. Waking up from sleep fails sometimes, sometimes it works.

 

My best suggestion: use an external mouse.

 

As a long time Linux user for over 15 years, I have gotten used to waiting roundabout half a year until brandnew hardware runs smoothly. My X1C6 is 15 months old and this issue is really frustrating. I miss my X1C3 dearly and the Lenovo quality I once cherished so much. My X1C6 is my fourth Notebook in a row from Lenovo and most likely my last.

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2 Posts

03-19-2019

DE

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-06, 7:45 AM

You could try a newer kernel version.

 

For me, Touchpad and Trackpoint are working without problems with the following installation:

 

Ubuntu 18.10

Kernel: 4.18.0-20-generic

BIOS: 1.37

 

Just had to comment out the blacklist line, but other comments suggest that this is not necessary anymore.

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33 Posts

03-11-2018

DE

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-24, 18:37 PM
Regarding your tap-to-click dropouts: this is a known bug in 18.04 and fixed in newer libinput versions:

from the arch linux wiki: “A bug in the libinput library that caused dropouts of the tap-to-click functionality of the touchpad on the X1 Carbon 6th Gen has been fixed in libinput 1.11.2, which was released on 3 July 2018”

libinput bug report: https://gitlab.freedesktop.org/libinput/libinput/issues/46

try ubuntu 19.04 or the hacky way: grab the libinput deb files from ubuntu 19.04 and install them on ubuntu 18.04
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3 Posts

06-05-2019

PL

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Re: Troubles with X1 Carbon 2018 (X1C6) TouchPad and TrackPoint under Linux

2019-06-26, 12:02 PM

Confirmed. Thank you!  

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