synclient options stick between X sessions
synclient <option>=<value> & lines to
.xinitrc before the line which runs your window manager or desktop environment, like so:
## X11 startup script; sourced by xinit(1) and its frontend startx(1)
## Set Synaptics touchpad options
synclient RTCornerButton=0 &
## Start desktop environment or window manager of your choice
# exec startlxde
# exec startkde
# exec i3
# exec dwm
The above example sets
synclient options before running the Xfce desktop environment.
Lines beginning with
# are comments (they will not be executed).
Using a display manager
The method is the same as for
xinit, except you put the
synclient lines in a relevant startup script for your display manager, e.g.
If you have any doubts, let me refer you to the excellent ArchWiki. Even though its Archlinux-specific, most solutions work in every linux distro due to Arch's DIY nature. Have a good one!