Opa!
Com a ajuda de um amigo, consegui resolver o problema. Segui o tutorial deste link:
http://ubuntuforums.org/showthread.php?t=573890Inclusive há também o link para um video-tutorial nesta mesma página. Muito bom!
O problema está no xorg.conf. Basta adicionar a ele os seguintes códigos:
Abaixo da última Section "InputDevice":
Section "InputDevice"
Identifier "pad"
Driver "wacom"
Option "Type" "pad"
Option "Device" "/dev/input/wacom"
Option "ButtonsOnly" "on"
Option "Button9" "2"
Option "Button13" "3"
Option "USB" "on"
EndSection
E mais este em # Uncomment if you have a wacom tablet:
InputDevice "pad" "SendCoreEvents"
Meu xorg.conf ficou assim:
# xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg
Section "Files"
EndSection
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "abnt2"
Option "XkbLayout" "br"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection
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
Section "InputDevice"
Identifier "pad"
Driver "wacom"
Option "Type" "pad"
Option "Device" "/dev/input/wacom"
Option "ButtonsOnly" "on"
Option "Button9" "2"
Option "Button13" "3"
Option "USB" "on"
EndSection
Section "Device"
Identifier "nVidia Corporation NV31 [GeForce FX 5600XT]"
Driver "nvidia"
Busid "PCI:1:0:0"
Option "AddARGBVisuals" "True"
Option "AddARGBGLXVisuals" "True"
Option "NoLogo" "True"
EndSection
Section "Monitor"
Identifier "L1752S"
Option "DPMS"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "nVidia Corporation NV31 [GeForce FX 5600XT]"
Monitor "L1752S"
Defaultdepth 24
SubSection "Display"
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
screen "Default Screen"
Inputdevice "Generic Keyboard"
Inputdevice "Configured Mouse"
# Uncomment if you have a wacom tablet
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
InputDevice "pad" "SendCoreEvents"
EndSection
Section "Module"
Load "glx"
EndSection
Depois vc ainda pode ativar os botões e a acroll da tablet, adicionando os seguintes códigos pelo terminal:
Para o botão 1 eu usei a função "voltar" do Firefox:
xsetwacom set pad Button1 "core key alt left arrow"
Para o botão 2 a função "avançar":
xsetwacom set pad Button2 "core key alt right arrow"
Para configurar a scroll:
xsetwacom set pad RelWUp "key core pgup"
xsetwacom set pad RelWDn "key core pgdn"
É isso aí!