Section "InputClass"
        Identifier "touchpad catchall"
        Driver "libinput"
        MatchIsTouchpad "on"
        Option "Tapping" "on"
        Option "ScrollMethod" "edge"
        Option "HorizontalScrolling" "on"
        MatchDevicePath "/dev/input/event*"
EndSection

$ grep -e "Using input driver " Xorg.0.log
[ 12822.271] (II) Using input driver 'libinput' for 'Power Button'
[ 12822.538] (II) Using input driver 'libinput' for 'Video Bus'
[ 12822.591] (II) Using input driver 'libinput' for 'Power Button'
[ 12822.610] (II) Using input driver 'libinput' for 'Sleep Button'
[ 12822.677] (II) Using input driver 'libinput' for 'WebCam SCB-0340N'
[ 12822.690] (II) Using input driver 'libinput' for 'AT Translated Set 2 keyboard'
[ 12822.720] (II) Using input driver 'libinput' for 'SynPS/2 Synaptics TouchPad'

$ xinput set-prop 12 273 1 # включение тачпада, дефолтное свойство 0
$ xinput set-prop 12 286 0 1 0 # отключение двупальцевого и включение однопальцевого скроллинга, дефолтно 1 0 0

$ cat ~/.xinitrc
#!/bin/sh
#
# ~/.xinitrc
#
# Executed by startx (run your window manager from here)
#
xinput set-prop 12 273 1
xinput set-prop 12 286 0 1 0
# exec ck-launch-session gnome-session-cinnamon

$ cat /home/eugene/Документы/etc/X11/xorg.conf.d/50-synaptics.conf.pacsave
# Example xorg.conf.d snippet that assigns the touchpad driver
# to all touchpads. See xorg.conf.d(5) for more information on
# InputClass.
# DO NOT EDIT THIS FILE, your distribution will likely overwrite
# it when updating. Copy (and rename) this file into
# /etc/X11/xorg.conf.d first.
# Additional options may be added in the form of
#   Option "OptionName" "value"
#
Section "InputClass"
        Identifier "touchpad catchall"
        Driver "synaptics"
        MatchIsTouchpad "on"
        Option "TapButton1" "1"
        Option "TapButton2" "2"
        Option "TapButton3" "3"
        Option "VertEdgeScroll" "on"
        Option "VertTwoFingerScroll" "on"
        Option "HorizEdgeScroll" "on"
        Option "HorizTwoFingerScroll" "on"
# This option is recommend on all Linux systems using evdev, but cannot be
# enabled by default. See the following link for details:
# http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
        MatchDevicePath "/dev/input/event*"
EndSection

Section "InputClass"
        Identifier "touchpad ignore duplicates"
        MatchIsTouchpad "on"
        MatchOS "Linux"
        MatchDevicePath "/dev/input/mouse*"
        Option "Ignore" "on"
EndSection

# This option enables the bottom right corner to be a right button on clickpads
# and the right and middle top areas to be right / middle buttons on clickpads
# with a top button area.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Default clickpad buttons"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
        Option "SecondarySoftButtonAreas" "58% 0 0 8% 42% 58% 0 8%"
EndSection

# This option disables software buttons on Apple touchpads.
# This option is only interpreted by clickpads.
Section "InputClass"
        Identifier "Disable clickpad buttons on Apple touchpads"
        MatchProduct "Apple|bcm5974"
        MatchDriver "synaptics"
        Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
EndSection

$ downgrade krdc
Available packages:

   1) krdc-16.04.2-1-x86_64.pkg.tar.xz (local)
   2) krdc-16.04.2-1-x86_64.pkg.tar.xz (remote)
   3) krdc-16.04.1-1-x86_64.pkg.tar.xz (local)
   4) krdc-16.04.1-1-x86_64.pkg.tar.xz (remote)
   5) krdc-16.04.0-1-x86_64.pkg.tar.xz (local)
   6) krdc-16.04.0-1-x86_64.pkg.tar.xz (remote)
   7) krdc-16.03.90-1-x86_64.pkg.tar.xz (remote)
   8) krdc-16.03.80-1-x86_64.pkg.tar.xz (remote)

select a package by number: 3
загрузка пакетов...
предупреждение: откат версии пакета krdc (16.04.2-1 => 16.04.1-1)
разрешение зависимостей...
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Пакеты (1) krdc-16.04.1-1