Re: [gentoo-user] How 2 disable synaptic pad (driver)

[Mick]

On Monday 03 January 2011 07:57:10 xing@××××××××××××.com wrote:
> On Mon, 03 Jan 2011, James wrote:
> > Hello, so I got xorg-server
> > working just fine on several machines.......(*!/#FFF....)
> >
> > Now I want to disable the synaptic pad on a laptop.
> > The first laptop I want to do this to is working without
> > any xorg.conf file nor a /etc/X11/xorg.conf.d/ dir.....
> >
> > This chipset is a RADEON XPRESS 20M (5955)
> >
> > So is this file the best one to try to disable the synaptic driver?
> > /etc/X11/xorg.conf.d/10-evdev.conf
> >
> > Suggestions are most welcome as googling has not
> > produced much, related to xorg-server-1.9.2
> > and how to disable the synaptic pad (driver).
> >
> > James
>
> hi james,
>
> i know of 2 methods - either using synclient or xinput. if the synclient
> method doesn't work, simply install xinput and the latter one should work.
>
> ------------------------------------------------------------------------
>
> cat ~/bin/toggle-touchpad
> #/bin/sh
> # synclient version
> if(synclient -l | grep "TouchpadOff" | grep -q "0") ; then
>     synclient TouchpadOff=1
> else
>     synclient TouchpadOff=0
> fi
>
> ------------------------------------------------------------------------
>
> cat ~/bin/toggle-touchpad
> #/bin/sh
> # xinput version
> if(xinput list-props TouchPad | grep "Synaptics Off" | grep -q "0") ; then
>    xinput set-int-prop TouchPad "Synaptics Off" 8 1
> else
>    xinput set-int-prop TouchPad "Synaptics Off" 8 0
> fi
>
> ------------------------------------------------------------------------

Or if you want to use the xorg configuration files you can try creating:

/etc/X11/xorg.conf.d/10-evdev.conf

and adding the option:

 Option "TouchpadOff" "1"

under the synaptics class, or set it to "2" if you want only tapping & 
scrolling switched off.

If this does not work (as was the case here) then you can instead modify  
/usr/share/X11/xorg.conf.d/10-evdev.conf (but will be overwritten when you 
remerge/update evdev).

If this still does not work <sigh...> then evdev will not do it - you need 
instead the synaptics driver to load and capture the events from your 
touchpad.  I assume that this may be a rare case, but since I came across it 
this is what you need to try:

Add Option "AllowEmptyInput" "off" in your Section "ServerLayout" of 
/etc/X11/xorg.conf.

Then modify /etc/X11/xorg.conf.d/50-synaptics.conf or 
/usr/share/X11/xorg.conf.d/50-synaptics.conf and add Option "TouchpadOff" "1" 
in there.

Theoretically, files in /etc/X11/xorg.conf.d/ should take precedence over 
files in /usr/share/X11/xorg.conf.d/, but practically this is not always the 
case.

HTH
-- 
Regards,
Mick