I have a touch interface with a stylus. I've no problems under the normal case, where the screen size is the same size as the output display size. However when I enable panning, I have problems panning out to the right and bottom of the display. The top and left sides are fine. Calibration was done several times with little or no success. Furthermore it was attempting with many combinations of options and tricks to try to fake out where the screen edges occured on the resistive matrix.

One interesting thing that makes me wonder, is that when I use a mouse, it works fine, ...BUT...I noticed that the pointer itself, when driven to the edges of the sides that operate correctly, drives off the screen for about 250-400ms then bounces back several tens of pixels to where it is fully visible on the display graphics. The pointer stays there until pan has shifted the screen is all the way to edge of the output display and then moves to the edge of the screen again. All this seems to make sense. Now for the sides that do not work, the pointer completely disappears off the screen for the same 250-400mSec but when bounces back towards the graphics area where it should be seen, only the the back trailing edge of the pointer is revealed on the graphics. The tip and rest of it are still off screen.

So in short, because of the way the mouse behaves when doing panning, it is consistent to the touch screen and stylus behaviour. I'm questioning whether there is an underlying, maybe fundamental issue with the way the off screen detection and cursor positioning is done, and not necessarily a driver issue. The mouse may work because it's not relying on the resistive touch screen coordinate position, but only it's digital counts related to movement and that is totally is independent of the pixel map.

Anyway those are my my thoughts and observations. So if anyone has any experience with this I would appreciate the help and advice.

Nial..

Welcome to the forum. It may help to know what OS you are using.

Sure, version is 2.6.32-504.8.1.el5.x86_64

that is not actually the OS you are using to post as an answer to that person question. It is only its version number which could be attached to many different Distros but not really, (depending on version handing that may well be only one version of OS that uses that method of version setting, so one may well be able to "google" that bit of information and find out what Distro it is attached to, but that is nip picking, and having to fix your mistake.)

Search Results
Centos 6.5 (2.6.32-504.8.1-el5.x86_64 ) for example.

If looking for other users with the same probem
Link

Edit: feel free to edit my search term to suit your needs.