Hi Peter,
Thanks for your reply :)
Coordinate Transformation Matrix is so cool, my LeslieMT is too
superficial
https://github.com/xiangzhai/myblog/blob/master/MTX11-Note/MT.conf
Even if LeslieMT is able to work, but it is not easy to configure the
device path, for example, /dev/input/event3 might be changed when a
Projected Capacitive touch screen USB device plug out/in or Linux box
reboot.
But it needs to read the device file descriptor to get 9 eGalax touch
screen devices` (X, Y) value simultaneously, then recognize the proper
gesture, so ugly and dull LeslieMT meets the "special" project requirement.
Best Regards,
Leslie
On Sat, Oct 19, 2013 at 11:31:08AM +0800, Leslie Zhai wrote:
Hi Xorg developers,
I use Projected Capacitive touch screen device
http://en.wikipedia.org/wiki/Touchscreen#Projected_capacitance
It can be pasted on the normal monitor, then it is able to touch, the
cursor
will move to the position where touched. It experienced like iphone and
other
single touch screen device.
But when I put multiple Projected Capacitive touch screen devices on
several
monitors, then touch some of them simultaneously, the cursor of X Window
was
only moving in the first monitor, even though it was able to move to other
monitors` display, it still failed to show the correct position.
default behaviour is to map the device to the set of all monitors together.
if you want to map a device to a specific montior you need to set the input
transformation matrix.
http://sourceforge.net/apps/mediawiki/linuxwacom/index.php?title=Dual_and_Multi-Monitor_Set_Up
because output can change positions, size, orientation, etc. at any time
there is no static (i.e. xorg.conf) option to configure this, it needs to be
set at runtime.
one matrix exists per device, so you can configure multiple touchscreens
easily enough.
Cheers,
Peter
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