desktop-packages team mailing list archive

[Major Hayden <major@xxxxxxxx>]

I'll be firing up a kernel bisect this weekend to see if I can find the
issue. From multiple reports (incuding some in the RHBZ[1]), 3.16 works
and 3.17 has issues.  3.18 and 3.19-rc7 have no improvements.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1188439

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https://bugs.launchpad.net/bugs/1416601

Title:
  touchpad does not respond to tap-to-clicks in I2C mode in Ubuntu 15.04
  on 2015 XPS 13 (9343)

Status in Dell Sputnik:
  Confirmed
Status in linux package in Ubuntu:
  Incomplete
Status in xserver-xorg-input-synaptics package in Ubuntu:
  New
Status in xserver-xorg-input-synaptics package in Fedora:
  Unknown

Bug description:
  Tap-to-click does not work unless I tap several times really fast
  (which is really hard to do), which also causes the cursor to move.
  This is a poor user experience.

  Relatedly, sometimes when using two-finger scrolling, the touchpad
  will get stuck such that I can let go and the cursor won't move. I can
  continue using two fingers to try scrolling, which works, but I can't
  get the cursor to move. If I tap the cursor several times really fast,
  I can eventually get the cursor unstuck so it moves again. I suspect
  that this is related to the tap-to-click issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.18.0-12-generic 3.18.0-12.13
  ProcVersionSignature: Ubuntu 3.18.0-12.13-generic 3.18.4
  Uname: Linux 3.18.0-12-generic x86_64
  ApportVersion: 2.15.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jared      3714 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri Jan 30 20:12:17 2015
  HibernationDevice: RESUME=UUID=af18bf4f-1453-4c8c-8b8e-abdc5d4e0674
  InstallationDate: Installed on 2014-11-03 (89 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0c45:670c Microdia 
   Bus 001 Device 003: ID 04f3:2051 Elan Microelectronics Corp. 
   Bus 001 Device 002: ID 8087:0a2a Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. XPS 13 9343
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.18.0-12-generic root=/dev/mapper/ubuntu--vg-root ro video.use_native_backlight=1 video.use_native_backlight=1
  RelatedPackageVersions:
   linux-restricted-modules-3.18.0-12-generic N/A
   linux-backports-modules-3.18.0-12-generic  N/A
   linux-firmware                             1.141
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-01-08 (23 days ago)
  dmi.bios.date: 11/04/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: 0144PA
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X04
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd11/04/2014:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0144PA:rvrX04:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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