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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report[0]? That will allow the upstream Developers to examine the issue,
and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to
email the appropriate mailing list. If no response is received, then a
bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-
reported-upstream'.

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel


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

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

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https://bugs.launchpad.net/bugs/1400558

Title:
  [HP Stream 11 Notebook - 11-d010nr] Max Double-Tap Time too short

Status in linux package in Ubuntu:
  Triaged

Bug description:
  Hi,

  There is an issue with this clickpad's simulated clicks. Specifically,
  the window for double-tapping (tapping the touchpad twice to simulate
  a double-click) is remarkably brief. Let me be clear, double-tapping
  on the touchpad does work, however if you do not get the second tap
  within a very short window after the first tap, it seems to fail to
  register as a double-click, counting it as two unrelated single clicks
  --this is an uncomfortably short window of opportunity.

  This problem exists upstream as well, tested as of this writing on the
  latest mainline kernel (version 3.18rc7).

  Things I have tried:
  Believing it to be a possible configuration issue, I attempted to increase the double-tap window by running the command:
  synclient MaxDoubleTapTime=500
  to allow a half-second delay instead of the default 180ms. However even after disabling and re-enabling the touchpad (xinput disable/enable <id>), there was no change in the brevity of this window.

  WORKAROUND: Tapping three times will register as a double-tap with a
  much more forgiving windolw of opportunity, but this is not ideal as
  it sometimes will also count the third click as its own separate
  click, which could cause unforseen problems in places where only a
  double-click specifically is desired.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-25-generic 3.16.0-25.33
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  amordea    1728 F.... lxpanel
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  CurrentDesktop: LXDE
  Date: Mon Dec  8 20:26:02 2014
  HibernationDevice: RESUME=UUID=6777feff-0199-4057-9990-625a28c71914
  InstallationDate: Installed on 2014-12-03 (5 days ago)
  InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP Stream Notebook PC 11
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-25-generic.efi.signed root=UUID=978b7845-5b80-4552-91ed-1f031c360c6e ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-25-generic N/A
   linux-backports-modules-3.16.0-25-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/14/2014
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.06
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 8023
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 54.11
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.06:bd11/14/2014:svnHewlett-Packard:pnHPStreamNotebookPC11:pvrType1-ProductConfigId:rvnHewlett-Packard:rn8023:rvr54.11:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Stream Notebook PC 11
  dmi.product.version: Type1 - ProductConfigId
  dmi.sys.vendor: Hewlett-Packard

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