Hi,
Read man xinput, see option map-to-output.
Then you can query the transformation matrix using xinput and
use the values in an xorg.conf piece, like these below so they are
applied as soon as the X server starts. This example works for
two X displays with identical resolutions side by side.
Section "InputClass"
Identifier "INTERNAL_TS"
MatchIsTouchscreen "on"
MatchProduct "EETI eGalaxTouch Serial TouchScreen"
Option "TransformationMatrix" "0.5 0 0 0 1 0 0 0 1"
EndSection
# Explicitly match only the Product name
# Neither MatchIsTouchscreen, MatchIsTouchpad or MatchIsTablet matches this
device
Section "InputClass"
Identifier "ELO_TS"
MatchProduct "Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r)
USB"
Option "TransformationMatrix" "0.5 0 0.5 0 1 0 0 0 1"
EndSection
2017-03-15 15:50 keltezéssel, Mike Werner írta:
Hi,
I need to run multiple touch screens on an OpenSuSE 13.2 system, as well as on an Ubuntu
16.04. Every thing works „fine“ when the system only has one graphics card (Nvidia)
installed. Unfortunately the systems is required to provide two graphics cards. In this
case the system has two XScreens and my approach mapping the xinput ID to a display port
does not work any longer. It seems that xinput is only able to work properly with one
xscreen (i.e. screen 0).
Is there a way to have multiple touch screens connected to multiple graphics cards? How
can this be achieved?
*
Kind regrads
Mike
*
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