Looks I'm getting same eefect with newest releases  of Ubuntu and evdev drivers 
(tried alot of combos,    throughout 2012 year).
Simply, using transformation matrix with evdev driver wich inverts, scales  or 
shift  coordinates  causes either jumping to border of screen or jitter when  
touch even happening, which makes usage of multi-display configuration with one 
or more touchscreens. Tested with 26.x and 3.2.x  kernels, with all release  
since february  of 2012. Using touchscreens:  3M  MicroTouch EX II (since 3.x 
kerel their driver i sjust wrapper of evdev.. before that it calibration  
utility doesn't support multiple touchscreens) , also rugged BARQ screens 
(which supposed to be used with evdev).

This is conundrum, because even if I could even have skill to  fix it
and rebuild driver (but I have not enough knowledge to do so)our company
would accept only official distros in production.

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/832624

Title:
  cursor jumping to screen border

Status in Unity Foundations:
  Won't Fix
Status in “xorg-server” package in Ubuntu:
  Won't Fix

Bug description:
  Even with xserver-xorg-core at version 2:1.10.1-1ubuntu1.2, incomplete
  valuators still cause the cursor to jump to the screen corners.

  
http://up.tao.at/download/c8a578b047fc4fbb205c4f0bee52532e/xev_with_new_xserver 
← Last tap (time 1494xxx) ended up with the cursor not where it should again 
(coordinates 600,675 would be correct, 1079,675 aren't).
  
http://up.tao.at/download/69e5a847d775f8fde8185fcf9345f0d9/evtest_with_new_xserver
 ← incomplete valuators, both on X and Y axis.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xorg 1:7.6+4ubuntu3.1
  ProcVersionSignature: Ubuntu 2.6.38-11.48-server 2.6.38.8
  Uname: Linux 2.6.38-11-server x86_64
  Architecture: amd64
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  Date: Wed Aug 24 10:33:26 2011
  DistUpgraded: Fresh install
  DistroCodename: natty
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller 
[8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Intel Corporation Mobile 4 Series Chipset Integrated Graphics 
Controller [8086:2a42]
     Subsystem: Intel Corporation Device [8086:2a42]
  InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 
(20110426)
  MachineType: OEM OEM
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/zsh
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-server 
root=UUID=825941db-d8b4-41af-8208-b095c47eba13 ro quiet
  Renderer: Unknown
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/12/2009
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: 6.00 PG
  dmi.board.name: Cantiga
  dmi.board.vendor: Intel
  dmi.board.version: PILLAR ROCK FAB2
  dmi.chassis.type: 3
  dmi.chassis.vendor: OEM
  dmi.chassis.version: OEM
  dmi.modalias: 
dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd02/12/2009:svnOEM:pnOEM:pvrOEM:rvnIntel:rnCantiga:rvrPILLARROCKFAB2:cvnOEM:ct3:cvrOEM:
  dmi.product.name: OEM
  dmi.product.version: OEM
  dmi.sys.vendor: OEM
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs 20090808ubuntu13
  version.libdrm2: libdrm2 2.4.23-1ubuntu6
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110107+b795ca6e-0ubuntu7

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