08-29-2015 03:13 AM - edited 08-29-2015 03:15 AM
System: ThinkPad T420 4236EP3, i5-2520M(2.5GHz), 4GB RAM, 320GB 7200rpm HD, 14in 1366x768 LCD, Intel HD Graphics, CDRW/DVDRW, Intel 802.11agn wireless, WWAN option, Bluetooth, 1Gb Ethernet, UltraNav, Secure Chip, 6c Li-Ion
TrackPoint and Touchpad and associated buttons were both fully functional in Win 7 Pro. My laptop displayed no issues with cursor control, or with any of the 3 TrackPoint and 2 Touchpad hardware buttons.
I abandoned WIN 10 Pro and rolled back to WIN 7 Pro. This is a work laptop and did not have the leisure time to further research or troubleshoot the issues. I also could not find any instances of other users reporting the same problems.
I will monitor this thread to see if there are any suggested fixes. For now, Win 10 Pro is not a viable OS for my T420 laptop.T42
09-24-2015 09:41 AM
Hello - I had the same problem a few weeks after upgrading from windows 7 pro 64 bits to windows 10 pro 64 bits on my t420s. I tired to replace the hardware without sucess with a new palmrest assembly. Finally I found a solution that fixed it by going to the mouse and trackpad settings in windows 10 and there changing the delay setting for the trackpad to respond - once I had changed that setting everything (trackpad buttons and trackpad) worked again.