:: Re: [DNG] Disabling touchpad
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Autor: Didier Kryn
Data:  
Para: dng
Assunto: Re: [DNG] Disabling touchpad
Le 27/12/2020 à 21:55, Steve Litt a écrit :
> On Sun, 27 Dec 2020 10:20:04 -0500
> Hendrik Boom <hendrik@???> wrote:
>
>> My touchpad is absurdly sensitive, and I keep brushing against it by
>> accident. I don't feel the touch at all, but the computer sure does.
>> It can hapen while I'm typing and suddenly my text edit turns into a
>> shell command in a newsly chosen window.
>> I suspect even a few beard hairs can activate it.
>>
>> Now I usually use a wireless mouse on this computer though
>> occasionally the mouse fails (usually low battery) an then I do want
>> the touchpad.
>>
>> Is there any way to disable the touchpad normally, but to reactivate
>> it easily when the mouse fails?
> Yes!
>
> The attached touchtoggle.sh should fulfill your exact needs. Just
> associate it with a convenient hotkey.
>
> For convenience I'm also putting it in the body, but use it from the
> attachment: I have no idea what email clients do to the characters in
> the file:
>
> ======================================================
> #!/bin/sh
>
> # touchtoggle.sh Copyright (C) 2019 by Steve Litt
> # All rights reserved.
> # Licensed via the
> # Expat license: https://directory.fsf.org/wiki/License:Expat
>
> # FIRST GET DEVICE'S DEVICE ID CONTAINING CASE INSENSITIVE "TOUCHPAD"
> devid=`xinput | grep -i touchpad | \
> sed -e"s/.*id=//" | sed -e"s/\s.*//"`
>
> # WITH THAT DEVICE ID, FIND EVERYTING ABOUT PROPERTY
> # CONTAINING CASE INSENSITIVE "DEVICE ENABLED"
> scratchline=`xinput --list-props 11 | \
> grep -i "device enabled" | \
> sed -e"s/^\s*//" | sed -e"s/\s*$//"`
> proptext=`echo $scratchline | sed -e"s/\s*(.*//"`
> propid=`echo $scratchline | sed -e"s/.*(//" | sed -e"s/).*//"`
> currstate=`echo $scratchline | sed -e"s/.*):\s*//"`
>
> # DIAGNOSTICS, COMMENT OUT WHEN FULLY FUNCTIONAL
> echo diagnostic devid      =$devid
> echo diagnostic scratchline=$scratchline
> echo diagnostic proptext   =$proptext#
> echo diagnostic propid     =$propid

>
> # TOGGLE CURRSTATE VARIABLE
> echo -n "Current state of $currstate "
> if test "$currstate" = "1"; then
>     currstate=0
> else
>     currstate=1
> fi
> echo has been changed to $currstate.

>
> # IMPLEMENT THE PROPERTY VALUE CHANGE
> xinput set-prop $devid $propid $currstate
>
> # UNCOMMENT FOLLOWING LINE IF PROPERTY ID STOPS WORKING
> #xinput set-prop $devid "$proptext" $currstate
>
> ======================================================
>
> I've had several versions of this shellscript, so please let me know
> whether it works for you.


    Note you might as well open your laptop and unplug the touchpad.
Just search for a tutorial on how to change it.

--         Didier