Ubuntu
xserver-xorg-input-synaptics package

  1. Bug #240738
  2. Comment #33

Comment 33 for bug 240738

Revision history for this message
In , Oliver-joos-freenet (oliver-joos-freenet) wrote :

I use Ubuntu 10.04.2 LTS with xorg 1:7.5+5ubuntu1 and xserver-xorg-input-synaptics 1.2.2-1ubuntu4

To reproduce start a terminal and execute
1. killall syndaemon
2. syndaemon -i 4.0 -k
3. then press keys and move pointer with touchpad at once

Two things go wrong:
* syndaemon writes "Disable" and "Enable" to stdout, but
  enables not always 4.0 secs after the last keypress.
* quite often the pointer still moves although syndaemon
  says it is disabled.

Details have been well explained by Stanley Sokolow as comment #20 on http://launchpad.net/bugs/27541 which is one of many duplicates of http://launchpad.net/bugs/240738. The low default timeout of 0.5 secs in Ubuntu makes it even worse and seems a workaround for http://launchpad.net/bugs/801763

Due to recent diversity of touchpad hardware this bug gains publicity. I found that Macbooks, newer Samsung laptops and Asus EeePCs are among the affected systems. See my findings with Elantech touchpads in comment #27 of http://launchpad.net/bugs/240738