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W701DS TrackPoint and Buttons Not Working After Upgrade

W500/W510/W520 and W700/W701 Series
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jcdbm
Posts: 18
Joined: Sun Jun 07, 2020 6:36 pm
Location: Los Angeles, California

W701DS TrackPoint and Buttons Not Working After Upgrade

#1 Post by jcdbm » Sat Dec 18, 2021 4:01 am

Hello,

I bought a W701DS recently and opened it open for a CPU and GPU upgrade.
The CPU and GPU upgrade went fairly well, although the machine wouldn't boot with the i7-940XM, only with the i7-920XM.
But, after I took out the CPU fan assembly for the CPU replacement, my TrackPoint and the Left and Right Click buttons have stopped working.
The keyboard itself works without issue, including all of the function keys.

I checked to see if it was a software problem -- the TrackPoint doesn't work on either Windows 10 or Windows 7, between driver uninstalls and reinstalls.
I even tested out my FrankenPad T601's keyboard, which works without issue on the T601, on the W701DS and the TrackPoint does not work when plugged in.

I've briefly referred to the hardware maintenance manual to see if there was something I unplugged, but I couldn't find anything.
I think I might be missing something here, perhaps there is an extra connection I don't know of on the W701DS?
My worst fear is that I have messed the motherboard up somehow.

unixed
Sophomore Member
Posts: 230
Joined: Fri Sep 04, 2015 7:41 pm
Location: Oxford, UK

Re: W701DS TrackPoint and Buttons Not Working After Upgrade

#2 Post by unixed » Sun Dec 19, 2021 5:50 pm

Try running a linux livecd* first on the T601 to see if the trackpoint and buttons work automatically and see if it shows up under "xinput list". If it is detected and automatically configured then try it on the W701ds, carefully changing the keyboard to that of the T601 if the original doesn't work. Also try the W701ds keyboard in the T601 after first checking the connector for any physical damage.
No other connector is required for the keyboard/trackpoint to work on the W701ds just as with the T601.
The above steps would help identify or eliminate any OS or keyboard isssues and if the problem persists it is likely the planar keyboard connector which has been adversely affected while performing your upgrades. You could visually inspect it for damage or debris and use compressed air to try and remove any of the latter.
*It is better to run the "livecd" from a USB drive, i.e linux runs from the USB drive, particularly for the T601.

You are referring to the buttons attached to the keyboard? I ask because you do not mention the third (middle) button.

fatkatsupra1
Freshman Member
Posts: 61
Joined: Sun Sep 03, 2017 2:17 pm
Location: Somewhere,Nowhere

Re: W701DS TrackPoint and Buttons Not Working After Upgrade

#3 Post by fatkatsupra1 » Sun Dec 19, 2021 6:29 pm

Sadly I think she's dead Jim. :cry:

I can provide my mailing address for proper disposal :D

Sorry I can't help further- I only have a lowly w700 :mrgreen:

jcdbm
Posts: 18
Joined: Sun Jun 07, 2020 6:36 pm
Location: Los Angeles, California

Re: W701DS TrackPoint and Buttons Not Working After Upgrade

#4 Post by jcdbm » Sat Jan 08, 2022 4:16 am

I tested it with another spare keyboard I sourced, and it seems to be an issue with the system board unfortunately.
Is the W701ds motherboard interchangeable with the W701 motherboard?
I'm planning to open up my W701ds soon to check where the graphical connection pins are, also to do a Hail Marry attempt to clean out the pin/connector area.

unixed
Sophomore Member
Posts: 230
Joined: Fri Sep 04, 2015 7:41 pm
Location: Oxford, UK

Re: W701DS TrackPoint and Buttons Not Working After Upgrade

#5 Post by unixed » Sat Jan 08, 2022 1:19 pm

The connector for the second screen is between the graphics card and rear edge of the planar and is only present on the W701ds boards. Moreover, the components that make that connector functional are missing. I would think the W701 planar works or can be made to work in the W701ds but definitely without the 2nd screen functionality.
Download the appropriate Hardware Maintenance Manual (HMM) from the link at the top of the page to help, in particular remove the battery and ensure no power supply before working on it.

TheForgottenKing
Junior Member
Junior Member
Posts: 471
Joined: Fri Apr 13, 2018 11:41 am
Location: Chicago, IL

Re: W701DS TrackPoint and Buttons Not Working After Upgrade

#6 Post by TheForgottenKing » Thu Jan 13, 2022 11:02 pm

Try it on Linux. Also make sure that it is enabled in the BIOS. The motherboard is mostly interchangeable but you might have to swap some components over.
theforgottenki.ng
W701ds: i7-940XM - 32GB - 256GB + 1TB - FX 2800M - 17" 1920x1200 + 10" 768x1280 - Wacom - Dock
Y910 - i7-7500U - 8GB - 256GB - 14" 1920x1080 touch
701R: m3-8100Y - 8GB - 64GB - 9.7" 2048x1536 (WIP)

FryPpy
Senior Member
Senior Member
Posts: 541
Joined: Thu Dec 06, 2012 3:29 pm
Location: Moscow, Russia

Re: W701DS TrackPoint and Buttons Not Working After Upgrade

#7 Post by FryPpy » Sat Jan 15, 2022 12:27 pm

If it is not too late...
Try to not connect palmrest (better - to boot ThinkPad without palmrest) and try boot keyboard and trackpoint only windows.
For me, ribbon cable in palmrest in W70x is prone to brake... and may be this brake can fool trackpoint... Without palmrest, trackpoint and it's buttons on keyboard can work normally.

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