Query regarding calibration

Sujith H hari.sujith at gmail.com
Tue Jul 22 04:31:24 PDT 2014


On Mon, Jul 21, 2014 at 10:48 PM, <jadahl at gmail.com> wrote:

> On Mon, Jul 21, 2014 at 07:55:10PM +0530, Sujith H wrote:
> > Hi all,
> >
> > I am using a freescale embedded device ( imx6 series) to run weston. I am
> > able to successfully run on desktop-shell as well as the ivi-shell. The
> > touch is also working fine. My query here is that the touch is not
> getting
> > calibrated precisely. When I launch an example from Qt5, say
> animatedtiles,
> > the touch points on the device does not work as expected. When I touch on
> > different icons they don't respond. And if touch on some other location
> on
> > the screen ( where the icons are not there) they do respond. I ran
> > weston-calibrator to added them to udev rules.
> > My udev rules file comprises of lines:
> >
> > ATTRS{name}=="eGalax Touch Screen",ENV{WL_CALIBRATION}="1.022831 0.032131
> > -33.125458 0.027089 1.006087 -13.918884"
> >
> > May I know how to tackle this problem, so that when I touch the icons of
> > the example(s) they respond properly. I had tried with
> weston-simple-touch,
> > it works like charm on the target. Let me know if I am missing any thing
> or
> > more inputs are needed to understand this problem.
>
> Since you say that weston-simple-touch gets the correct coordinates (draws
> the red dots under your finger), if another client works incorrectly, I'd
> suspect that its that client that is at fault. The compositor will not
> send touch events differently depending on what client asks for it.
>

Yah that's right.


>
> If its not the client that is at fault, then it'd be good to know if the
> udev rules you got from weston-calibrator change the way behaviour
> weston-simple-touch, and whether you are using the libinput backend or
> the default built input device backend.
>

No the udev rules don't change behaviour of weston-simple-touch. I am not
using
libinput backend am using the default one.


>
> Jonas
>
> >
> > Thanks and regards,
> >
> > Sujith H
>
> > _______________________________________________
> > wayland-devel mailing list
> > wayland-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/wayland-devel
>
>
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