touch calibration on second screen impossible

[Peter Hutterer]

On Sat, Sep 23, 2017 at 09:57:37AM +0200, Klaus Rudolph wrote:
> With X11 ( before wayland ) I can set up my touchscreen with:
> 
>     xinput --list
> 
> find my device: "Advanced Silicon S.A. CoolTouch(TM) System"
> 
> and can simply set the props I need with:
> 
>     xinput set-prop 'Advanced Silicon S.A. CoolTouch(TM) System'
> --type=float 'Coordinate Transformation Matrix' 0.533333333333333, 0,
> 0.466666666666667, 0, 1, 0, 0, 0, 1
> 
> But now, `xinput list` did not show my any real devices, only some mystery
> generic ones as this:
> 
>      ⎡ Virtual core pointer                     id=2    [master pointer
> (3)]
>      ⎜   ↳ Virtual core XTEST pointer               id=4    [slave pointer
> (2)]
>      ⎜   ↳ xwayland-pointer:14                      id=6    [slave pointer
> (2)]
>      ⎜   ↳ xwayland-relative-pointer:14             id=7    [slave pointer
> (2)]
>      ⎜   ↳ xwayland-touch:14                        id=9    [slave pointer
> (2)]
>      ⎣ Virtual core keyboard                    id=3    [master keyboard
> (2)]
>          ↳ Virtual core XTEST keyboard              id=5    [slave keyboard
> (3)]
>          ↳ xwayland-keyboard:14                     id=8    [slave keyboard
> (3)]
> 
> So I only see some mystery wayland pseudo devices.

https://who-t.blogspot.com.au/2017/05/xinput-list-shows-xwayland-pointer.html

> With `libinput-list-devices` I can see my touch device, but I can not find
> any documentation how I can configure devices for libinput. All docs tell my
> that it can be done with `xinput` with is not true for wayland on fedora.
> Any idea?
> 
> Q: How can I configure input devices on wayland in fedora 25.

well, there's the LIBINPUT_CALIBRATION_MATRIX but it's not actually what you
need here since you have multiscreen mapping issue.
https://wayland.freedesktop.org/libinput/doc/latest/udev_config.html

mutter should map the touchscreen to a single screen, does it not do that?

Cheers,
   Peter

> 
> 
> Sorry that I contact via developer list, but I did not find any wayland help
> list and non of the forums for fedora or stackexchange can answer the
> question. Seems to be that touch is seldom used.
> 
> If you can point my to any other mailing list, is also welcome.
> 
> Any help or any link to help is really welcome.
> 
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