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[Jason Edgecombe <jason@xxxxxxxxxxxxxxxxx>]

The instructions from kendatsuba in comment 136 worked for me.
Installing  the psmouse-elantech-x551c.tar.gz dkms module fixed the
touchpad on my Toshiba Satellite E55-A5114 running Ubuntu Saucy (64bit)

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https://bugs.launchpad.net/bugs/1166442

Title:
  Elantech clickpad/touchpad lacks multitouch features.

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Precise:
  Fix Released
Status in “linux” source package in Quantal:
  Fix Released
Status in “linux” source package in Raring:
  Fix Released
Status in “linux” source package in Saucy:
  Fix Released
Status in “linux” package in Arch Linux:
  New

Bug description:
  Newer versions of the Elantech multitouch trackpad are not fully
  supported in Linux.  These appear in many of the newer Samsung
  laptops, for example.  elantech.c in the kernel needs to be updated to
  support these models (up to v7 perhaps?)

  This bug is confirmed to affect a range of samsung laptops running
  Ubuntu 12.04 and newer, ArchLinux, Fedora and also affects the current
  (3.9) upstream kernel.

  A dkms package was produced in 2011 (see
  https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
  intel/+bug/681904/comments/64) which may fix certain older laptops
  affected by this issue, but doesn't fix newer models.

  == Original Report ==

  Hello,

  So far I've been having a problem with my Elantech multitouch trackpad in Linux. Basically all i get is right click, left click, and tap to click, along with basic  movement. The problem seems to be rooted in improper detection of the trackpad, likely b/c its a new revision or whatnot. Of note is that working elantech trackpads of the past in forums i scouted through show up as "ETPS/2 Elantech Touchpad". Mine just shows up in xinput as "PS/2 Elantech Touchpad". I think this might be a simple fix in the end, just improper detection, I hope. For reference, I've tried kernel 3.5 on Ubuntu 12.10 and kernel 3.8.0-17 on Ubuntu 13.04 thus far, with all combinations of psmouse.
  ------------------------------------------------------------------------------------------
  What's expected: touchpad multitouch support
  What happened: basic touchpad support
  Laptop mode: Samsung Series 7 NP780 series
  Ubuntu distro(s) tested: Ubuntu 12.10, Ubuntu 13.04
  Kernels used: 3.5 signed (Ubuntu 12.10 default), 3.8.0-16, 3.8.0-17 signed
  Other tests: Attempted using psmouse-elantech-v6, psmouse-alps, and psmouse-alps-dst. No improvements so removed.

  synclient -l reports "Couldn't find synaptics properties. No synaptics driver loaded?"
  ------------------------------------------------------------------------------------------
  See attached for more info. Ask anything you need!
  ---
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gscoppino   2272 F.... pulseaudio
  DistroRelease: Ubuntu 13.04
  HibernationDevice: RESUME=UUID=f683852c-7aa0-4f32-8b86-56f0a018989d
  InstallationDate: Installed on 2013-04-06 (3 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 770Z5E/780Z5E/870Z5E/880Z5E
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-17-generic.efi.signed root=UUID=cf39fbe5-c8ff-4d16-b11e-a41a4f3ae955 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.8.0-17.27-generic 3.8.6
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-17-generic N/A
   linux-backports-modules-3.8.0-17-generic  N/A
   linux-firmware                            1.104
  StagingDrivers: rts5139
  Tags:  raring staging
  Uname: Linux 3.8.0-17-generic x86_64
  UpgradeStatus: Upgraded to raring on 2013-04-06 (3 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 02/26/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P03ABU.139.130226.SK
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP780Z5E-S01UB
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SEC_SW_REVISION_1234567890ABCD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP03ABU.139.130226.SK:bd02/26/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn770Z5E/780Z5E/870Z5E/880Z5E:pvrP03ABU:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP780Z5E-S01UB:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: 770Z5E/780Z5E/870Z5E/880Z5E
  dmi.product.version: P03ABU
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  ---
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gscoppino   2272 F.... pulseaudio
  DistroRelease: Ubuntu 13.04
  HibernationDevice: RESUME=UUID=f683852c-7aa0-4f32-8b86-56f0a018989d
  InstallationDate: Installed on 2013-04-06 (3 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 770Z5E/780Z5E/870Z5E/880Z5E
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-17-generic.efi.signed root=UUID=cf39fbe5-c8ff-4d16-b11e-a41a4f3ae955 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.8.0-17.27-generic 3.8.6
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-17-generic N/A
   linux-backports-modules-3.8.0-17-generic  N/A
   linux-firmware                            1.104
  StagingDrivers: rts5139
  Tags:  raring staging
  Uname: Linux 3.8.0-17-generic x86_64
  UpgradeStatus: Upgraded to raring on 2013-04-06 (3 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 02/26/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P03ABU.139.130226.SK
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP780Z5E-S01UB
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SEC_SW_REVISION_1234567890ABCD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP03ABU.139.130226.SK:bd02/26/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn770Z5E/780Z5E/870Z5E/880Z5E:pvrP03ABU:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP780Z5E-S01UB:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: 770Z5E/780Z5E/870Z5E/880Z5E
  dmi.product.version: P03ABU
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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