Fixed after changing /usr/share/X11/xorg.conf.d/10-evdev.conf as detailed in http://ubuntuforums.org/showthread.php?t=2231207&page=3
Section "InputClass" Identifier "evdev pointer catchall" MatchIsPointer "on" MatchDevicePath "/dev/input/event*" Driver "evdev" Option "vendor" "045e" Option "product" "07dc" Option "IgnoreAbsoluteAxes" "True" EndSection
Section "InputClass" Identifier "evdev keyboard catchall" MatchIsKeyboard "on" MatchDevicePath "/dev/input/event*" Driver "evdev" EndSection
Section "InputClass" Identifier "evdev touchpad catchall" MatchIsTouchpad "on" MatchDevicePath "/dev/input/event*" Driver "evdev" EndSection
Section "InputClass" Identifier "evdev tablet catchall" MatchIsTablet "on" MatchDevicePath "/dev/input/event*" Driver "evdev" EndSection
Section "InputClass" Identifier "evdev touchscreen catchall" MatchIsTouchscreen "on" MatchDevicePath "/dev/input/event*" Driver "evdev" EndSection
Fixed after changing /usr/share/ X11/xorg. conf.d/ 10-evdev. conf ubuntuforums. org/showthread. php?t=2231207& page=3
as detailed in
http://
Section "InputClass"
MatchIsPointer "on"
MatchDevicePat h "/dev/input/event*" Axes" "True"
Identifier "evdev pointer catchall"
Driver "evdev"
Option "vendor" "045e"
Option "product" "07dc"
Option "IgnoreAbsolute
EndSection
Section "InputClass"
MatchIsKeyboar d "on"
MatchDevicePat h "/dev/input/event*"
Identifier "evdev keyboard catchall"
Driver "evdev"
EndSection
Section "InputClass"
MatchIsTouchpa d "on"
MatchDevicePat h "/dev/input/event*"
Identifier "evdev touchpad catchall"
Driver "evdev"
EndSection
Section "InputClass"
MatchIsTablet "on"
MatchDevicePat h "/dev/input/event*"
Identifier "evdev tablet catchall"
Driver "evdev"
EndSection
Section "InputClass"
MatchIsTouchsc reen "on"
MatchDevicePat h "/dev/input/event*"
Identifier "evdev touchscreen catchall"
Driver "evdev"
EndSection