Introduction

Problems with touchpad detection typically fall into one off these categories:

1. Your touchpad doesn't work at all.
2. Your touchpad stops working after a while.
3. Some features of your touchpad like scrolling, tapping, dragging don't work (as expected).

General information

For all bug categories the following general information should be provided:

1. What brand and model is your laptop, open a terminal/console and enter the following command:

   $ cd /var/lib/acpi-support/; grep '.' *-* > ~/laptop 

   What features does your touchpad have: horizontal and vertical scrolling, tapping, dragging, ...

2. Open a terminal/console and enter the following commands (minimal information as described in KernelTeamBugPolicies):

   $ uname -a > ~/uname-a
   $ cat /proc/version_signature > ~/version_signature
   $ sudo lspci -vvnn > ~/lspci-vvnn 

3. If using Ubuntu 8.10 or later, run  $ lshal > ~/lshal  and attach ~/lshal.

4. Attach ~/laptop, ~/uname-a, ~/version_signature and ~/lspci-vvnn to the bug report as separate attachments.

In case your touchpad doesn't work at all

1. File the bug against linux

2. Provide the general information.

3. Enter the following command in a terminal/console:

   $ dmesg > ~/dmesg 

4. Attach ~/dmesg and your /var/log/Xorg.0.log to the bug report in separate attachments.

In case your touchpad stops working after a while

1. Provide the general information.

2. Direct after logging in to GNOME, KDE or Xfce open a terminal and enter the following commands:

   $ dmesg > ~/dmesg_boot
   $ cp /var/log/Xorg.0.log ~/Xorg.0.log 

3. Wait until your touchpad stops working.
4. Open a Virtual Terminal by pressing Ctrl-Alt-F1.

5. Enter the following commands:

   $ LANG=C
   $ dmesg > ~/dmesg
   $ diff -ns ~/dmesg_boot ~/dmesg > ~/dmesg_diff
   $ cp /var/log/Xorg.0.log ~/Xorg.0.log_tmp
   $ diff -ns ~/Xorg.0.log ~/Xorg.0.log_tmp > ~/Xorg.0.log_diff 

6. Attach ~/dmesg_boot, ~/dmesg_diff, ~/Xorg.0.log and ~/Xorg.0.log_diff to the bug report in separate attachments.

In case some features of your touchpad like scrolling, tapping, dragging don't work (as expected)

1. File bug against xserver-xorg-input-synaptics

2. Provide the general information.

3. Open a terminal and enter the following commands:

   $ cat /proc/bus/input/devices > ~/devices
   $ dmesg > ~/dmesg 

4. Attach your /var/log/Xorg.0.log, ~/devices and ~/dmesg to the bug report in separate attachments.

CategoryBugSquad CategoryDebugging