DebuggingTouchpadDetection

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== 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, ...
 1. 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 }}}
 1. If using Ubuntu 8.10 or later, run {{{ $ lshal > ~/lshal }}} and attach {{{~/lshal}}}.
 1. Attach {{{~/laptop}}}, {{{~/uname-a}}}, {{{~/version_signature}}} and {{{~/lspci-vvnn}}} to the bug report as separate attachments.
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##[[Anchor(knownbugs)]]
##= Known bugs =

##Description of known issues, how to recognise them and stock responses/actions.

##'''Open'''
##||<rowbgcolor="#eeeeee"> '''Bug#''' || '''Description''' || '''Action''' ||
##|| [https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/9068 #9068] || Serial mouse isn't autodetected || If you want your serial mouse to be autodetected in future versions of Ubuntu, please help by following the steps described here: https://lists.ubuntu.com/archives/ubuntu-devel/2006-February/015020.html and attach the requested information to [https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/9068 bug #9068]. ||

##'''Closed'''
##||<rowbgcolor="#eeeeee"> '''Bug#''' || '''Description''' || '''Action''' ||
##|| [https://bugs.beta.launchpad.net/ubuntu/+source/synaptic/+bug/8896 #8896] ##|| This bug can be identified by ... || blabla ||

## = Non-bugs =

## How to recognise common issues arising from hardware failures, common feature requests and other invalid bugs for this category. Advice how triage them and stock responses.

Debugging Central

This page is part of the debugging series — pages with debugging details for a variety of Ubuntu packages.

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).

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

DebuggingTouchpadDetection (last edited 2019-02-26 09:05:55 by anthonywong)