Touchpad is re-enabled after typing

Bug #459832 reported by volinthius on 2009-10-24
This bug affects 6 people
Affects Status Importance Assigned to Milestone
acpi-support (Ubuntu)
Steve Langasek

Bug Description

Binary package hint: acpi-support

The script disables touchpad until keyboard is typed. This seems to be caused by syndaemon, which re-enables touchpad after typing. With syndaemon shut down this doesn't occur.

I suggest fixing this by using the xinput property Device Enabled instead of Synaptics Off in

Steps to repeat the problem:
Seen on Ubuntu 9.10 with acpi-support 0.129. Using Lenovo T61.
1) Disable touchpad via Fn+F8
2) Verify disableness by using the touchpad
3) Type some keys
4) Verify enableness by using the touchpad

volinthius (volinthius) on 2009-10-24
description: updated
Steve Langasek (vorlon) on 2009-10-25
Changed in acpi-support (Ubuntu):
assignee: nobody → Steve Langasek (vorlon)
importance: Undecided → Low
status: New → Triaged
Anita (a-lewis) wrote :

I have this problem too in karmic. I found a way to work around it. I installed gsynaptics to disable the touchpad (because my other problem is that the function key no longer works.) Then in System/Preferences/Mouse/Touchpad, I unselect "Disable touchpad while typing." Now the touchpad does not re-enable when I type.

Joan Teixidó (joanteixido) wrote :

Same problem with an Asus M51VR. With ubuntu 9.04, i haven't problems , the fn key works and disabled the mousepad.

Now, with 9.10, i've problems. The fn key (F9 in my laptop and a with a quickkey) doesn't works. With Gsynaptics i can disabled the mousepad but it enable after any key was pressed.

This only woks with the workaround of Anita.


gary (grcrosby) wrote :

I am using a Dell Inspiron 1420 and I usually turned off the touchpad while I had a mouse plugged in. Now even going in and telling Preferences>Mouse>Touchpad and unselecting the "Disable touchpad while typing" I continue to have the touchpad responding to every touch. Annoying to a lazy typist.

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