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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

gsoundsgood, thank you for reporting this and helping make Ubuntu better. As per http://www.asus.com/Notebooks_Ultrabooks/X550LD/HelpDesk_Download/ an update to your BIOS is available (306). If you update to this following https://help.ubuntu.com/community/BiosUpdate does it change anything?  If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.

For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.

Thank you for your understanding.

** Description changed:

- Touchpad on the Asus X550LD is not working on Ubuntu 14.04.
+ Touchpad on the Asus X550LD is not working on Ubuntu 14.04 with either
+ default or mainline kernel 3.15.0-031500-generic.
  
  Cursor does make some movements if you insist toying and clicking on the
  touchpad, but only seldomly (just using it normally often would produce
  no move), and in a direction that apparently has no relation with touch.
  Generally moves towards bottom, bottom/left, but insisting one can have
  patchy movements in other directions. However, clicking has no effect.
  
  Mouse connected with USB works normally, until you try to use the
  touchpad. If you touch the touchpad, the cursor mostly keeps on moving
  as per the mouse, but click mostly does not work. Logging out and
  logging in or restarting fixes the problem.
  
- As suggested by mantainer of related bug, I tested with the latest
- mainline kernel, 3.15.0-031500-generic, with no apparent effect on the
- above-described behavior, and, as suggested, I filed this new bug
- 
- See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1325881
- 
- I'm using Ubuntu Gnome 14.04
+ WORKAROUND: Use external USB mouse but don't touch the touchpad.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-29-generic 3.13.0-29.53
  ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
  Uname: Linux 3.13.0-29-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC1:  g          1530 F.... pulseaudio
-  /dev/snd/controlC0:  g          1530 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC1:  g          1530 F.... pulseaudio
+  /dev/snd/controlC0:  g          1530 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Tue Jun 10 08:18:41 2014
  HibernationDevice: RESUME=UUID=205b0b44-7997-42f7-806d-3b367ebfdceb
  InstallationDate: Installed on 2014-06-09 (0 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: ASUSTeK COMPUTER INC. X550LD
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic.efi.signed root=UUID=ee58b2b6-1d8c-4137-beca-6a52a4634265 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.13.0-29-generic N/A
-  linux-backports-modules-3.13.0-29-generic  N/A
-  linux-firmware                             1.127.2
+  linux-restricted-modules-3.13.0-29-generic N/A
+  linux-backports-modules-3.13.0-29-generic  N/A
+  linux-firmware                             1.127.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/17/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X550LD.300
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X550LD
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX550LD.300:bd01/17/2014:svnASUSTeKCOMPUTERINC.:pnX550LD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550LD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X550LD
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Tags added: bios-outdated-306 kernel-bug-exists-upstream-3.15

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

-- 
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https://bugs.launchpad.net/bugs/1328392

Title:
   [Asus X550LD] Touchpad not working - Ubuntu 14.04

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Touchpad on the Asus X550LD is not working on Ubuntu 14.04 with either
  default or mainline kernel 3.15.0-031500-generic.

  Cursor does make some movements if you insist toying and clicking on
  the touchpad, but only seldomly (just using it normally often would
  produce no move), and in a direction that apparently has no relation
  with touch. Generally moves towards bottom, bottom/left, but insisting
  one can have patchy movements in other directions. However, clicking
  has no effect.

  Mouse connected with USB works normally, until you try to use the
  touchpad. If you touch the touchpad, the cursor mostly keeps on moving
  as per the mouse, but click mostly does not work. Logging out and
  logging in or restarting fixes the problem.

  WORKAROUND: Use external USB mouse but don't touch the touchpad.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-29-generic 3.13.0-29.53
  ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
  Uname: Linux 3.13.0-29-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  g          1530 F.... pulseaudio
   /dev/snd/controlC0:  g          1530 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Tue Jun 10 08:18:41 2014
  HibernationDevice: RESUME=UUID=205b0b44-7997-42f7-806d-3b367ebfdceb
  InstallationDate: Installed on 2014-06-09 (0 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: ASUSTeK COMPUTER INC. X550LD
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic.efi.signed root=UUID=ee58b2b6-1d8c-4137-beca-6a52a4634265 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-29-generic N/A
   linux-backports-modules-3.13.0-29-generic  N/A
   linux-firmware                             1.127.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/17/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X550LD.300
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X550LD
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX550LD.300:bd01/17/2014:svnASUSTeKCOMPUTERINC.:pnX550LD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550LD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X550LD
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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