Touchscreen problem

QNX Newsgroups (Archives) qdn.public.qnx4.photon
1

Hi all, we have a machine with QNX 4.24, a NEAT-650 CPU with a processor of
500 Mhz. We also use a touchscreen for Photon.

The problem is the following: when we set the touchscreen with the acalib
function it’s OK. As soon as we reboot. the mouse pointer disapear and we
cannot interact with the GUI.

Do you have any ideas?

Thanks

2

Hi

Do you mean the touch screen seems to responds but the calibration is all
wrong, so bad that the pointer may be off the screen or jump about even
though you just calibrated it.

I had that, you have to edit the calibration file because it writes the
calibration data the wrong way round or gets a flag wrong, I cannot remember
the precise details but will try and find them if you feel it would be
useful.

Steve

“Sylvain Guillemette” <sguillemette@akitek.com> wrote in message
news:908g0h$5gd$1@inn.qnx.com…

Hi all, we have a machine with QNX 4.24, a NEAT-650 CPU with a processor
of
500 Mhz. We also use a touchscreen for Photon.

The problem is the following: when we set the touchscreen with the acalib
function it’s OK. As soon as we reboot. the mouse pointer disapear and we
cannot interact with the GUI.

Do you have any ideas?

Thanks

3

Stephen F Terrell <stephen@trsystem.demon.co.uk> wrote:

Hi

Do you mean the touch screen seems to responds but the calibration is all
wrong, so bad that the pointer may be off the screen or jump about even
though you just calibrated it.

I had that, you have to edit the calibration file because it writes the
calibration data the wrong way round or gets a flag wrong, I cannot remember
the precise details but will try and find them if you feel it would be
useful.

Steve

Would both of you please contact heather@qnx.com

I think you have a mismatched Input driver and calibration utility.