xop, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, could you please run the following command in
the development release from a Terminal
(Applications->Accessories->Terminal), as it will automatically gather
and attach updated debug information to this report:

apport-collect -p xserver-xorg-input-evdev REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is
already available, doing this on a release prior to the development one
would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: xserver-xorg-input-evdev (Ubuntu)
   Importance: Undecided => Low

** Changed in: xserver-xorg-input-evdev (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1078272

Title:
  It's impossible to configure multiple touchscreens using evdev

Status in “xserver-xorg-input-evdev” package in Ubuntu:
  Incomplete

Bug description:
  We're trying to get a multi-touchscreen (multiple touchscreens not
  multi touch) setup working with the evdev driver in Natty Narwhal.
  Basically, the touchscreens are configured and working except that the
  mapping to the correct X screen is wrong. We set up 5 touchscreens in
  a row (Xorg ServerLayout "RightOf") and their corresponding
  touchscreen inputdevices. Using xinput we are able to create a pointer
  for each of the touchscreens. The following is observed then: When
  touching any screen, the resulting movement of the pointer is only
  displayed on the first X screen (there are 5 pointers visible then on
  this screen.). This is not at all the desired behavior. We would like
  to attach a touchscreen to a specific X screen.

  Unfortunately, we found no way to tell the evdev driver to map a
  InputDevice to a X screen. Older versions of the driver (1.1.2)
  provided an option "AbsoluteScreen" (see
  http://manpages.ubuntu.com/manpages/dapper/en/man4/evdev.4.html)  but
  the latest version hasn't anything like this. I know that the evtouch
  driver would provide a "ScreenNo" option, however evtouch is not
  available for Natty Narwhal. We also experimented with the Xorg
  coordinate transformation matrix, but with the result that the mouse
  movements where still on the first X screen.

  So my question is:
  How do I tell the evdev driver to map an InputDevice to a specific X screen? 
Is there an option line in xorg.conf or is there any method via xinput?

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