Comment 122 for bug 1722478

Thinkpad T400 with non working two finger scroll here running Kubuntu 20.04, I just wanted to comment that none of the above solutions worked for me, but one that I found buried in a youtube video did get it to work! And I just can't leave it visible ONLY in a video, it's just not right.

What it boils down to is running these three xinput commands (I'm sure someone with more knowledge can say what this actually does and possibly the corresponding configuration file settings)
xinput --set-prop --type=int --format=32 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Width" 8
xinput --set-prop --type=int --format=32 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Pressure" 4
xinput --set-prop --type=int --format=8 "SynPS/2 Synaptics TouchPad" "Synaptics Two-Finger Scrolling" 1 0