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[Bug 1431185] [NEW] [Lenovo X250] The left, middle and right button of touchpad are useless after 14.04.2 installed

 

Public bug reported:

Steps:
1. Install 14.04.2 on Lenovo X250
2. Try to use the left, middle and right button of touchpad.

Expected result:
The keys work normally.

Actual result:
The left, middle and right button of touchpad are useles

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-31-generic 3.16.0-31.41~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-31.41~14.04.1-generic 3.16.7-ckt5
Uname: Linux 3.16.0-31-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Mar 12 02:58:43 2015
InstallationDate: Installed on 2015-03-11 (1 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: linux-lts-utopic (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: 201501-16339 amd64 apport-bug beijing-lab blocks-hwcert trusty

** Attachment added: "plainbox-201501-16339.tgz"
   https://bugs.launchpad.net/bugs/1431185/+attachment/4342337/+files/plainbox-201501-16339.tgz

** Also affects: hwe-next
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1431185

Title:
   [Lenovo X250] The left, middle and right button of touchpad are
  useless after 14.04.2 installed

Status in HWE Next Project:
  New
Status in linux-lts-utopic package in Ubuntu:
  New

Bug description:
  Steps:
  1. Install 14.04.2 on Lenovo X250
  2. Try to use the left, middle and right button of touchpad.

  Expected result:
  The keys work normally.

  Actual result:
  The left, middle and right button of touchpad are useles

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-31-generic 3.16.0-31.41~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-31.41~14.04.1-generic 3.16.7-ckt5
  Uname: Linux 3.16.0-31-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Mar 12 02:58:43 2015
  InstallationDate: Installed on 2015-03-11 (1 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

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References