For most graphic designers a tablet is a must. One of the best tablet makers out there is Wacom. Due to the myth about Linux not having drivers support for everyday necessities, designers have steered clear of Linux. However, Wacom now supports the open source movement.
The process is not that difficult but you will have to use the command line and edit files. First download the official, latest, stable version of the driver. Extract.
cd linuxwacom
sudo ./configure
make
sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bak
sudo gedit /etc/X11/xorg.conf
The last two lines helped open up the xorg file. Edit the xorg file so it looks somewhat like this.
Section “InputDevice”
Driver “wacom”
Identifier “stylus”
Option “Device” “/dev/ttyS0” #SERIAL ONLY
Option “Device” “/dev/input/wacom” #USB ONLY
Option “Type” “stylus”
Option “USB” “on” #USB ONLY
Option “ForceDevice” “ISDV4” #Tablet PC ONLY
EndSection
Section “InputDevice”
Driver “wacom”
Identifier “eraser”
Option “Device” “/dev/ttyS0” #SERIAL ONLY
Option “Device” “/dev/input/wacom” #USB ONLY
Option “Type” “eraser”
Option “USB” “on” #USB ONLY
Option “ForceDevice” “ISDV4” #Tablet PC ONLY
EndSection
Section “InputDevice”
Driver “wacom”
Identifier “cursor”
Option “Device” “/dev/ttyS0” #SERIAL ONLY
Option “Device” “/dev/input/wacom” #USB ONLY
Option “Type” “cursor”
Option “Mode” “relative”
Option “USB” “on” #USB ONLY
Option “ForceDevice” “ISDV4” #Tablet PC ONLY
EndSection
If you have a Intuos3 or Cintiq 21UX add this.
Section “InputDevice”
Driver “wacom”
Identifier “pad”
Option “Device” “/dev/ttyS0” #SERIAL ONLY
Option “Device” “/dev/input/wacom” #USB ONLY
Option “Type” “pad”
Option “USB” “on” #USB ONLY
EndSection
Section “ServerLayout”
Identifier “Default Layout”
Screen “Default Screen”
InputDevice “Generic Keyboard”
InputDevice “Configured Mouse”
InputDevice “stylus” “SendCoreEvents”
InputDevice “eraser” “SendCoreEvents”
InputDevice “cursor” “SendCoreEvents” #For non-LCD tablets only
InputDevice “pad” #For Intuos3/Cintiq 21UX/Graphire4 tablets. It should NOT send core event
EndSection
For pressure sensitivity add this line to the Stylus section.
Option “PressCurve” “50,0,100,50”
Now to use your tablet in Gimp you have change some things around in gimp.
File-> Preferences-> Input Devices-> “Configure Extended Input Devices”.
Under “Device” you will have 3 settings: Cursor, Eraser and Stylus. Set them from “Disabled” to “Screen”.
Now you should have pressure sensitivity in Gimp. *Hooray!* Just a side note, each input device (stylus,cursor,eraser) has a completely different set of attributes in Gimp, and in theory, you can even assign a unique serial number to different pens to get even more granularity. You will experience this when you try to use your eraser for the first time. Rather than selecting the eraser tool, you get the rectangle selection tool instead. This is by design, believe it or not. Gimp does not care that its an eraser, just that it’s not the pen you were just using. If you choose the eraser tool now, it will remember that for the next time you try to use it. On the plus side, you can set the eraser to be anything, including the Airbrush tool or Clone tool.
If you have any trouble check out the Ubuntu forums and the Wacom Help Page.