Just installed 13.1 on my laptop (Thinkpad X200s) which was running 12.2 for ages.
All seems well except that the use of button1+button3 as button2 is not working. This is a serious problem as the middle button is not really working. It was OK on 12.2
I run X with fvwm as window manager; no gnome or kde. Where should this be configured?
OK found a solution on other Linux forum. Just surprised that the update did not preserve that option.
The answer is to edit /etc/X11/xorg.d.conf/11-ecdev.conf to read
# Novell Bugs #597214, #780626, #843333
Identifier “IBM TPPS/2 TrackPoint|ThinkPad USB Keyboard with TrackPoint”
MatchProduct “TPPS/2 IBM TrackPoint”
Option “EmulateWheel” “on”
Option “EmulateWheelButton” “2”
Option “Emulate3Buttons” “on”
Note penultimate line