U810 Buttons and Touchscreen Part 3

Now for the touchscreen.

1. Go into the BIOS and set the Touchscreen mode to TouchPanel rather than Tablet. This messes up Vista until you switch it back.
2. Install the x11-input-evtouch drivers from the OpenSuSE Tablet Page
3. Log into a text console as root and do init 3 to drop out of X
4. Create the following symlink in / (yes! silly bug in evtouch software!)

   
   ln -s /usr/share/xf86-input-evtouch/empty_cursor.xbm .

5. Add the following to /etc/X11/xorg.conf:

   
   Section "InputDevice"
   Driver     "evtouch"
   Identifier "TouchScreen[1]"
   Option     "Device" "/dev/input/by-id/usb-Fujitsu_Component_USB_Touch_Panel-event-joystick"
   Option     "SendCoreEvents" "On"
   Option     "Calibrate" "1"
   End Section
   

6. Add the following to the ServerLayout section in xorg.conf:

   
   InputDevice "TouchScreen[1]" "SendCoreEvents"

7. Run the calibration procedure:

   
   cd /usr/lib/xf86-input-evtouch
   ./calibrate.sh

8. On the first screen (white with 9 little crosses) move the pointer around the edges of the screen so that the readout gives good maximum/minimum values for the screen limits (in my case the coordinates went from around 500-15000). You'll notice that resposne is really rotten towards the top right - can't seem to fix that without resorting to hacking code.
   
9. Hit enter to go to the next phase which is calibrating for digitser unevenness. the top-left cross will turn red. Tap on it and the next cross should turn red - and so on. Due to the responsiveness prblem you probably can't tap on some X's. Left click on the mouse to go to the next one (right click to go back). After the last one you are unceremoniously dumped back at the command prompt.
10. You will find a text file called out.txt generated by the calibration software. We need to remove the bogus entries caused by the untappable points so open it up in an editor. The calibration offsets are the x0,y0-x8,y8 pairs (in the same order as the calibration X's, I believe) and should be around +/-20. If there are any out-of-range numbers try and interpolate between adjacent sensible values.
11. Open up xorg.conf and paste in the contents of the modified out.txt into the InputDevice section just after the Calibrate line. Then place a # before the Calibrate line to comment it out.
12. init 5 to restart X and enjoy (except for the top right insensitive spot).
13. If you're happy with the calibration delete the symlink in /