I tried it with Debian 10.2 stable Xfce and it worked.
sudo apt install xserver-xorg-input-evdev sudo vi /etc/X11/xorg.conf.d/50-use-evdev.conf
# Use evdev. You do not need to uninstall libinput.
Section "InputClass" Identifier "My Mouse" Driver "evdev" MatchIsPointer "yes" Option "Emulate3Buttons" "True" Option "Emulate3Timeout" "50" Option "GrabDevice" "False" EndSection
I tried it with Debian 10.2 stable Xfce and it worked.
sudo apt install xserver- xorg-input- evdev xorg.conf. d/50-use- evdev.conf
sudo vi /etc/X11/
# Use evdev. You do not need to uninstall libinput.
Section "InputClass"
Identifier "My Mouse"
Driver "evdev"
MatchIsPointer "yes"
Option "Emulate3Buttons" "True"
Option "Emulate3Timeout" "50"
Option "GrabDevice" "False"
EndSection