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Friday, March 25, 2011

How to make touchpad/clickpad temporarily disable when typing?

Since my laptop has clickpad that has larger area and more sensitive than common touchpad, I get an annoying behavior of my clickpad; when I type and my thumb or palm accidentally touches or near the clickpad, the cursor will be moved to the position that is pointed by mouse pointer, so that, I will continue to type in the wrong position! I hate this behavior! I have to disable my clickpad when I am typing. There are two methods:

Method 1, I disable my clickpad permanently. I run this script to toggle on/off my clickpad:
#Toggle touchpad
SYNSTATE=$(synclient -l | grep TouchpadOff | awk '{ print $3}')
# change state
if [ $SYNSTATE = 0 ]; then
  synclient touchpadoff=1
elif [ $SYNSTATE = 1 ]; then
  synclient touchpadoff=0

Method 2, I use /usr/bin/syndaemon to disable my clickpad only when I am typing. The steps:
  1. Make ~/.xprofile
    # Customize X environment
    # Activate syndaemon for monitoring keyboard activity and disabling # the touchpad when the keyboard is being used.
    /usr/bin/syndaemon -td
  2. Add these lines on the top of /usr/bin/startkde (if you use KDE as the default desktop manager) in order to make X server executes ~/.xprofile when it starts.
    if [ -r /etc/xprofile ]; then
            source /etc/xprofile
    if [ -r $HOME/.xprofile ]; then
            source $HOME/.xprofile
  3. Restart X server.
Currently, I use method 2 because I only disable my clickpad temporarily when syndaemon detects keyboard action and resume my clickpad function within 2 seconds after the last key pressed. For more information about syndaemon, type: man syndaemon on your console.

1 comment:

Unknown said...

this solution is elegant (method2)
usually people do not get the silly things until someone else point it out.

i hope i had known this couple of months back.... (for refereces )