DOKK / manpages / debian 11 / xserver-xorg-input-synaptics / synclient.1.en
synclient(1) General Commands Manual synclient(1)

synclient - commandline utility to query and modify Synaptics driver options.

synclient [-lV?] [var1=value1 [var2=value2] ...]

This program lets you change your Synaptics TouchPad driver for XOrg/XFree86 server parameters while X is running.

List current user settings. This is the default if no option is given.
Print version number and exit.
-?
Show the help message.
Set user parameter var to value.

/etc/X11/xorg.conf

To disable EdgeMotionMinSpeed:

synclient EdgeMotionMinSpeed=0

Peter Osterlund <petero2@telia.com> and many others.

Xorg(1), syndaemon(1), synaptics(4)

xf86-input-synaptics 1.9.1 X Version 11