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Blue Screen Again
Posts: 2
Registered: ‎05-09-2017
Location: US
Views: 1,349

X1 Carbon Yoga G3 - Trackpad Lags / Delays when two finger scrolling

Similar to other posts on this forum, I'm experiencing somewhat random two finger scrolling behavior when using the trackpad on my brand new X1 Yoga Gen3.


Microsoft Windows [Version 10.0.16299.431]
Synaptics Driver:


The problems are:

1. In Chrome, scrolling a page downward usually works (fingers moving up the touchpad).  Vertical upward scrolling (fingers moving down the touchpad) works maybe 50% of the time.

2. Random jumps that I can't attribute to my palm hitting the touchpad.


I've tried umpteen bios and driver updates, and changing power, touch, sensitivity settings to no avail.  I don't really believe it's a pure hardware issue, because when I go to certain web pages like Google maps, I can zoom in and out using two finger touch with a reasonably good success rate.  When it fails it's always when zooming in (two fingers moving down the touchpad), and instead the cursor just moves down the page (without the map zooming), so the second finger has is no longer recognised.

It also seems to be related somehow to the complexity of the javascript the page is running.  This forum, for example often exhibits the problem worse than many other web pages.  


So my guess is that the software stack is just slow getting the scrolling message to the browser code or fails to recognise two fingers moving down the touchpad.  


Anybody have any other ideas?

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