I have a broken touchscreen that goes crazy when enabled.  Should I add Option "Ignore" "on" to the /usr/share/X11/xorg.conf.d/10-evdev.conf file?      Section "InputClass"     Identifier "evdev touchscreen catchall"     MatchIsTouchscreen "on"     MatchDevicePath "/dev/input/event*"     Driver "evdev"      **Option "Ignore" "on"**     EndSection   Why cant I just change MatchIsTouchscreen to "off" ???????????????  I have read on a lot of threads that suggest add Option "Ignore" "on". One thread said editing the configuration file can "...blow up xserver!" Is there any truth to that?  If editing this file /usr/share/X11/xorg.conf.d/10-evdev.conf is ok, what is the best method?     1) sudo nano /usr/share/X11/xorg.conf.d/10-evdev.conf     2) sudo gedit /usr/share/X11/xorg.conf.d/10-evdev.conf    3) from files simply follow path to -evdev.conf file and edit and save   I currently run xinput disable "ELAN Touchscreen" in my startup applications, but when my laptop wakes from suspend the touchscreen is enabled. So I either reboot, or struggle to run the command in the terminal; which is a real challenge sometimes when the screen is going crazy.  I know this question has been asked a number of times but I imagine others must be as confused as I am.
It is my understanding that I can disable my touchscreen by adding Option "Ignore" "on" to this file                                /usr/share/X11/xorg.conf.d/10-evdev.conf   Section "InputClass"           Identifier "evdev touchscreen catchall"           MatchIsTouchscreen "on"           MatchDevicePath "/dev/input/event*"           Driver "evdev"           EndSection   so it would look like this   Section "InputClass"           Identifier "evdev touchscreen catchall"           MatchIsTouchscreen "on"           MatchDevicePath "/dev/input/event*"           Driver "evdev"           Option "Ignore" "on"           EndSection   What would happen if I simplied changed MatchIsTouchscreen to "off"?   Section "InputClass"           Identifier "evdev touchscreen catchall"           MatchIsTouchscreen "off"           MatchDevicePath "/dev/input/event*"           Driver "evdev"           EndSection   Would this disable my touchscreen?
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