ThinkPad X200 Wacom Tablet for Debian Testing

To get the X200 Wacom Tablet to work i have made several steps, that i will describe later in the post. After the last update of xserver-xorg-input-wacom i also got the touch input working without problems.

First my hardware specifications:
Thinkpad X200 Tablet (with Stylus and Touch)
2x Intel(R) Core(TM)2 Duo CPU     L9400  @ 1.86GHz
4GB Ram
Display Resolution: 1280×800 pixels

I am running Debian GNU/Linux “squeeze” testing.

1. Install the following packages

aptitude install xserver-xorg-input-wacom

2. Let Xorg produce the xorg.conf

Xorg -configure

3. Edit xorg.conf

Now edit /etc/X11/xorg.conf and add the following lines in the Section “ServerLayout”:

# X200 touchscreen
InputDevice    "cursor" "SendCoreEvents"
InputDevice    "stylus" "SendCoreEvents"
InputDevice    "eraser" "SendCoreEvents"
InputDevice    "touch"  "SendCoreEvents" #touch device

The other lines can be added anywhere:

# X200 touchscreen
 
Section "InputDevice"
	Driver        "wacom"
	Identifier    "cursor"
	Option        "Device"        "/dev/ttyS0"
	Option        "Type"          "cursor"
	Option        "ForceDevice"   "ISDV4"
	Option        "Mode"          "Absolute"
EndSection
 
Section "InputDevice"
	Driver        "wacom"
	Identifier    "stylus"
	Option        "Device"        "/dev/ttyS0"
	Option        "Type"          "stylus"
	Option        "ForceDevice"   "ISDV4"
EndSection
 
Section "InputDevice"
	Driver        "wacom"
	Identifier    "eraser"
	Option        "Device"        "/dev/ttyS0"
	Option        "Type"          "eraser"
	Option        "ForceDevice"   "ISDV4"
EndSection
 
# support for "touch" (with finger, available on x200t and some x61t)
Section "InputDevice"
	Driver        "wacom"
	Identifier    "touch"
	Option        "Device"        "/dev/ttyS0"          # SERIAL ONLY
	Option        "Type"          "touch"
	Option        "ForceDevice"   "ISDV4"               # Serial Tablet PC ONLY
 
	# suppress cursor movements when touch movements are too small, prevents flickering of cursor
	Option	      "Suppress"      "2"
 
	# Adding manual calibration, since proper calibration seems impossible.
	Option	      "BottomY"	      "940"
	Option	      "BottomX"       "950"
	Option	      "TopX"          "48"
	Option	      "TopY"          "90"
EndSection

4.Configure Tablet Keys

1. To get the Tablet Buttons to do what i want them to do, create a file called .Xmodmap in your home directory with the following content:

   ! tablet, from left to right: rotate, flip, full keycode 162 = XF86LaunchA keycode 161 = XF86LaunchB keycode 149 = XF86LaunchC

2. Edit your .Xsession or .xinit Script to use this Xmodmap configuration. Beside this i also mapped the Stylus to Mousebuttons and activated the TrackPoint Scrolling:

   # trackpoint xinput xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation" 1 xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Button" 2 xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Timeout" 200   # wacom stylus xsetwacom set stylus Button1 1 xsetwacom set stylus Button2 3 xsetwacom set stylus Button3 3   # using special Xmodmap xmodmap ~/.Xmodmap

3. Create a new Bash script that we will use to rotate and flip the display, like ~/tablet.sh and make it executable (chmod +x tablet.sh):

   #!/bin/bash   # config output="LVDS1"   # get current rotation current=`xrandr --verbose | grep "$output" | sed "s/^[^ ]* [^ ]* [^ ]* ([^(]*) \([a-z]*\).*/\1/"` case $current in normal) geom=0;; left) geom=1;; inverted) geom=2;; right) geom=3;; esac   if [ "$1" == "invert" ] || [ "$1" == "flip" ]; then   # based on current rotation set new rotation if [ "$1" == "invert" ]; then   # invert case $geom in 0) wacom=half; xrandr=inverted;; 1) wacom=cw; xrandr=right;; 2) wacom=none; xrandr=normal;; 3) wacom=ccw; xrandr=left;; esac   else   # flip case $geom in 0) wacom=cw; xrandr=right;; 1) wacom=half; xrandr=inverted;; 2) wacom=ccw; xrandr=left;; 3) wacom=none; xrandr=normal;; esac   fi   #echo "xrandr to $xrandr, xsetwacom to $wacom"   # rotate display xrandr -o $xrandr   # rotate wacom xsetwacom set "stylus" Rotate $wacom xsetwacom set "eraser" Rotate $wacom xsetwacom set "touch" Rotate $wacom   else   echo "possible parameters: flip, invert"   fi

4. Map the script to the Tablet Keys. I am using Awesome WM so this part is window manager specific. In Gnome you can set these Keys via a graphical interface. In the case of awesome add this to your globalkeys:

   awful.key({}, "XF86LaunchA", function () awful.util.spawn("bash /home/NAME/tablet.sh invert") end), -- invert awful.key({}, "XF86LaunchB", function () awful.util.spawn("bash /home/NAME/tablet.sh flip") end), -- flip

This tutorial is based on the following hints:
[1] http://www.cub3.net/blog/configuring-the-touch-screen-for-x200t/
[2] http://linuxwacom.sourceforge.net/index.php/howto/inputdev
[3] http://www.thinkwiki.org/wiki/Wacom_Serial_Tablet_PC_Stylus
[4] http://www.thinkwiki.org/wiki/Tablet_Hardware_Buttons
[5] http://www.thinkwiki.org/wiki/How_to_get_special_keys_to_work