I got rid of the following lines in /etc/X11/xorg.conf:
Section "InputDevice" Identifier "Synaptics Touchpad" Driver "synaptics" Option "SendCoreEvents" "true" Option "Device" "/dev/psaux" Option "Protocol" "auto-dev" Option "SHMConfig" "on" Option "HorizScrollDelta" "0" EndSection
By getting rid of these lines, the touchpad started behaving normally again. However, is this the way to resolve this (kind of a) bug?
I got rid of the following lines in /etc/X11/xorg.conf:
Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "SHMConfig" "on"
Option "HorizScrollDelta" "0"
EndSection
By getting rid of these lines, the touchpad started behaving normally again.
However, is this the way to resolve this (kind of a) bug?