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_paul
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Posts: 25
Registered: ‎06-03-2017
Location: US
Views: 1,065
Message 131 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Interestingly this change made my touchpad freeze much more frequently (every few seconds) and these freezes wern't reported in dmesg like the more intermitent ones I was getting caused by the lost sync error. I've reverted to a previous kernel.

xvzf
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Posts: 28
Registered: ‎05-12-2017
Location: DE
Views: 962
Message 132 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Hi everyone,

 

This patch seems to fix the problem. No hang ups so far since 24hrs (before every 1-3hrs)!!!

 

Have a look:
https://github.com/xvzf/linux-thinkpad-carbon-X1-gen5/blob/master/len0073-4.12.patch

 


The patch is for Linux 4.12.8!


Please provide some feedback, If it fixes the problem completly I'll try to get it into the mainline kernel!

Cheers,
Matthias

xvzf
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Posts: 28
Registered: ‎05-12-2017
Location: DE
Views: 958
Message 133 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Nevermind, forget it.
Clicked Post and it freezed Smiley Sad(( However after 24hrs, maybe it will improve the usage experience!

teehaa
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Posts: 43
Registered: ‎07-20-2017
Location: DE
Views: 851
Message 134 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Can anyone still provide hope for a solution? Smiley Happy

teehaa
SCSI Port
Posts: 43
Registered: ‎07-20-2017
Location: DE
Views: 773
Message 135 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Also am I supposed to undo the changes I made whilst trying different stuff (kernels, boot options)?
rgba
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Posts: 30
Registered: ‎06-18-2017
Location: AT
Views: 759
Message 136 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Yes, I would recommend to undo all the things we have added as boot parameters etc. so that you are running a stable 16.04 version of ubuntu

ardevd
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Posts: 42
Registered: ‎08-25-2017
Location: NO
Views: 665
Message 137 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Hi all.

 

Just got a brand new X1C5 today. Ensured UEFI was up to date and that all updates listed by the Lenovo Companion app were installed before I wiped Windows off and installed Fedora 26.

 

When booting up the live CD I immediately noticed that the trackpoint did not function and the touchpad was pretty much unusable. I went ahead and installed anyway eager to see if kernel updates would improve anything. Sadly, thats not the case and Im stuck with having to disable the trackpoint in UEFI which gives me a pretty functioning touchpad.

 

Anyone know if this issue only affects X1C5s with Elantech trackpoints? There are various kernel patches floating around that supposedly fixes the issue but I'm staying away until I get a better bearing on whats going on.

 

kudram
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Posts: 32
Registered: ‎01-07-2016
Location: US
Views: 661
Message 138 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

Anyone (besides me) running Gentoo Linux on an X1C 5th Gen? It's been working for me and I'm just wondering if it's a hardware issue or a distro issue.
ardevd
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Posts: 42
Registered: ‎08-25-2017
Location: NO
Views: 634
Message 139 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux

@kudram Im betting you have a Synaptics trackpoint and not one from Elantech. If you have Windows available you can run TrackpointDetectTool.exe to confirm this.

 

Its great that with the X1C5 we no longer have a display lottery but its a real bummer that we have a trackpoint lottery instead.

teehaa
SCSI Port
Posts: 43
Registered: ‎07-20-2017
Location: DE
Views: 580
Message 140 of 261

Re: Thinkpad X1 Carbon 2017 Gen5 Touchpad Issue - Linux


@kudram wrote:
Anyone (besides me) running Gentoo Linux on an X1C 5th Gen? It's been working for me and I'm just wondering if it's a hardware issue or a distro issue.

I'd like to mention that I have an ELAN TouchPad and it's working (almost) perfect in Win10. Therefore, I'd think it's rather a distro problem.

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