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Ajitpal
Paper Tape
Posts: 2
Registered: ‎04-05-2018
Location: CA
Views: 912
Message 1 of 4

Two finger scrolling stops working after startup

I recently applied updates via Lenovo System Update and now the touch pad stops detecting multi-finger touches shortly after startup. It works for a few minutes, then I guess something either gets loaded or crashes and the touchpad stops detecting multiple fingers.

Therefore, two finger scrolling and two finger pinch stop working.

This was working fine about a month ago.

 

Synaptics Pointing Device driver: 18.1.27.39

Synaptics SMBus Driver: 18.1.27.39

Windows 8.1 Enterprise - 64-bit Version 6.3.9600 Build 9600

T550 - Model 20CK000GUS

 

I tried to re-install the UltraNav driver and thatdidn't resolve the issue.

 

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 883
Message 2 of 4

Re: Two finger scrolling stops working after startup

Your Synaptics driver is a bit old; try installing the Windows 10 driver and see if it works:
https://support.lenovo.com/co/en/downloads/ds103454

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
Ajitpal
Paper Tape
Posts: 2
Registered: ‎04-05-2018
Location: CA
Views: 875
Message 3 of 4

Re: Two finger scrolling stops working after startup

Thanks for the reply, but that driver is for Windows 10 and published Oct 2016.

I'm on Windows 8.1 and the driver was updated Jan 2018.

Guru
Posts: 9,598
Registered: ‎12-26-2009
Location: CA
Views: 866
Message 4 of 4

Re: Two finger scrolling stops working after startup

Oops sorry I gave you the wrong link:
https://support.lenovo.com/us/en/downloads/ds104007

It does say Windows 10 and it does say L450,T450, T450s, but it installs fine on my Windows 7 on W520.

The driver for this one is dated 2018-01-16. Your driver is dated recently, but it was due to a security issue that needed to be fixed.


W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U

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