It has been posted in other places that you can use tabcal to calibrate you touch/pen input with more test points for better accuracy... however since our wonderful device has BOTH touch and pen inputs, the parameters everyone is using to manually calibrate using tabcal directly are wrong and as such many people have had issues with their touch input going all crazy after trying to calibrate their pen in this manner or the calibration simply wouldn't do anything. After messing around with settings all day I noticed if you use the calibration tool via the control panel it asks you what you want to calibrate, 'PEN' or 'TOUCH' before it starts tabcal, meaning there must be some parameter that is being passed to tabcal when you make this selection. So I opened up a cmd prompt and typed tabcal /? and was greated with a big fat nothing. Knowing that tabcal had switches since I had already been using some I decided to open tabcal with a hex editor to get a better look and thats when I found it: "devicekind=" so without further babbling from me......
HOW TO PROPERLY CONFIGURE YOUR PEN:
!First reset all of your current calibration data for both pen and touch! Now double check that your resolution is set to the native 1920 x 1080. Then copy and paste the following either in a run box or a cmd prompt:
tabcal devicekind=pen lincal novalidate XGridPts=10,60,110,160,260,360,460,560,660,810,960,1110,1260,1360,1460,1560,1660,1760,1810,1860,1910 YGridPts=10,60,110,160,250,400,540,680,830,920,970,1020,1070
Now after you have gone through all 273 input points you will need to edit your registry just a little should you ever want/need to reset the calibration data via the control panel reset thingy. To make this small fix go to the following in your registry:
As always, if this helped you please hit the 'Thanks' button