Little Girl's Mostly Linux Blog

WacomErrors

Wacom Errors

This page was last updated on July 18, 2009.

Introduction

Seeing these errors in Ubuntu or Kubuntu 7.10 (Gutsy Gibbon) or older releases?
X Error: BadDevice, invalid or uninitialized input device 167 
X Error: BadDevice, invalid or uninitialized input device 168 
X Error: BadDevice, invalid or uninitialized input device 169 
They’re there because xorg.conf is set to automatically configure Wacom tablets. The errors themselves are harmless, but if you don’t use a Wacom tablet, there’s no harm in disabling them. This guide shows how to disable the wacom devices in xorg.conf.

Acknowledgements

This document came about as a result of the information provided by some of the members of the alt.os.linux.ubuntu newsgroup. I really appreciate it!

Requirements

  • Ubuntu or Kubuntu 7.10 (Gutsy Gibbon) or earlier.
  • A computer with no Wacom tablet.
  • Wacom errors like those shown in the Introduction section of this document.
  • You should have an understanding of how sudo, gksudo and kdesu work. See RootSudo and graphicalsudo.

Disable Wacom

  1. Open a terminal window.
  2. Back up your xorg.conf file by typing:
  3. sudo cp /etc/X11/xorg.conf xorg.conf_backup

    Press the Enter key.

  4. Check that the backup is there by typing:
  5. ls -l /etc/X11

    Press the Enter key.

  6. Edit the xorg.conf file using one of these methods:
    • KDE users, type:
    • kdesu kate /etc/X11/xorg.conf

      Press the Enter key.

    • GNOME users, type:
    • gksudo gedit /etc/X11/xorg.conf

      Press the Enter key.

  7. Make these changes:
    • There are three sections for wacom devices. Comment these out by placing a # at the beginning of EACH line, so they match this example:

      # Section "InputDevice"
      #       Driver          "wacom"
      #       Identifier      "stylus"
      #       Option          "Device"        "/dev/input/wacom"
      #       Option          "Type"          "stylus"
      #       Option          "ForceDevice"   "ISDV4"         # Tablet PC ONLY
      # EndSection
      
      # Section "InputDevice"
      #       Driver          "wacom"
      #       Identifier      "eraser"
      #       Option          "Device"        "/dev/input/wacom"
      #       Option          "Type"          "eraser"
      #       Option          "ForceDevice"   "ISDV4"         # Tablet PC ONLY
      # EndSection
      
      # Section "InputDevice"
      #       Driver          "wacom"
      #       Identifier      "cursor"
      #       Option          "Device"        "/dev/input/wacom"
      #       Option          "Type"          "cursor"
      #       Option          "ForceDevice"   "ISDV4"         # Tablet PC ONLY
      # EndSection
      

    • There are three entries for wacom devices. Comment these out by placing a # at the beginning of EACH line, so they match this example:
    • #       InputDevice     "stylus" "SendCoreEvents"
      #       InputDevice     "cursor" "SendCoreEvents"
      #       InputDevice     "eraser" "SendCoreEvents"
      
  8. Save and exit.
  9. In the terminal window, restart the X server using one of these methods:
    • GNOME users, type:
    • sudo /etc/init.d/gdm restart

      Press the Enter key.

    • KDE users, type:
    • sudo /etc/init.d/kdm restart

      Press the Enter key.


Obligatory Happy Ending

And they all lived happily ever after. The end.

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