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[Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>]

Compare with the xinput output, the USB id of this touchscreen is
[28c8:0001]

T:  Bus=02 Lev=02 Prnt=04 Port=00 Cnt=01 Dev#=  6 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=28c8 ProdID=0001 Rev=01.01
S:  Manufacturer=UltraChip
S:  Product=UCI Touch
C:  #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#= 1 Alt= 0 #EPs= 2 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid


⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ UltraChip UCI Touch                     	id=10	[slave  pointer  (2)]
⎜   ↳ UltraChip UCI Touch                     	id=11	[slave  pointer  (2)]
⎜   ↳ ImPS/2 Generic Wheel Mouse              	id=15	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Power Button                            	id=6	[slave  keyboard (3)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Power Button                            	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ Integrated_Webcam_HD                    	id=12	[slave  keyboard (3)]
    ↳ UVC Camera (114d:1001)                  	id=13	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=14	[slave  keyboard (3)]
    ↳ Dell WMI hotkeys                        	id=16	[slave  keyboard (3)]

** Summary changed:

- [Dell Latitude 12 Rugged Extreme 7204] Touchscreen 3-finger / 4-finger gestures does not work
+ [Dell Latitude 12 Rugged Extreme 7204] UltraChip UCI Touch Touchscreen [28c8:0001] 3-finger / 4-finger gestures does not work

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https://bugs.launchpad.net/bugs/1340110

Title:
  [Dell Latitude 12 Rugged Extreme 7204] UltraChip UCI Touch Touchscreen
  [28c8:0001] 3-finger / 4-finger gestures does not work

Status in HWE Next Project:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  CID: 201402-14663 Dell Latitude 12 Rugged Extreme

  According to Dell's website[1], this system comes with a multi-touch screen
  But only two-finger pinch / expand zoom is supported on this system

  Steps:
  1. Install 14.04 + update (3.13.0-30), boot to desktop
  2. Try to open Dash with 4 fingers tap
  3. Try to move a window with 3 fingers tap

  Expected results:
  * 3 / 4-finger gesture should work

  Actual result:
  * Nothing happened

  [1] 11.6” HD (1366 x 768) 16:9 Direct-View outdoor-readable display with resistive multi-touch
  http://www.dell.com/us/business/p/latitude-7204-laptop/pd

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-30-generic 3.13.0-30.55
  ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1501 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     1501 F.... pulseaudio
  CRDA:
   country TW:
    (2402 - 2472 @ 40), (3, 27)
    (5270 - 5330 @ 40), (3, 17), DFS
    (5735 - 5815 @ 40), (3, 30)
  CurrentDesktop: Unity
  Date: Thu Jul 10 05:36:18 2014
  HibernationDevice: RESUME=UUID=b68f02ad-f5e4-4eb9-b88d-e85f60666734
  InstallationDate: Installed on 2014-07-10 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. Latitude 12 Rugged Extreme (7204)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic.efi.signed root=UUID=bdd00fe9-0df9-4b71-92c5-5f94c533f725 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-30-generic N/A
   linux-backports-modules-3.13.0-30-generic  N/A
   linux-firmware                             1.127.4
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/12/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: 0TH1GJ
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X02
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd05/12/2014:svnDellInc.:pnLatitude12RuggedExtreme(7204):pvr01:rvnDellInc.:rn0TH1GJ:rvrX02:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude 12 Rugged Extreme (7204)
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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