kernel-packages team mailing list archive

[Ben Lansdell <ben.lansdell@xxxxxxxxx>]

Hi Chris,

the update did not change any symptoms for me.

Booting the kernel without the option 'psmouse.proto=bare' results in
the trackpad not working just as before. The only response it will
produce when you touch the trackpad is (on rare occassions) it might
instantly jump to a random part of the screen, it might disappear, it
might result in random keyboard input. Without being touched, every 2
seconds or so, the cursor will drift 50 or so pixels to the left of the
screen. I used to fix these by running 'sudo modprobe -r psmouse' and
using an external mouse.

Booting the kernel with the option 'psmouse.proto=bare' makes all these
symptoms go away and basic functionality of the trackpad work.

Here's the output you requested:

lansdell@juneau:~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
[sudo] password for lansdell: 
X550LA.509
06/26/2014

In the process of flashing the BIOS to the latest (509) I did learn one
thing: the model of my laptop (ASUS X550LA-DH51) differs from what was
advertised by amazon when I purchased it (ASUS D550MA-DS01). This is
strange, and was a surprise I only learnt from the trouble I had
flashing the BIOS with the latter's BIOS files instead of the former's.
Mainly its relevance here is that the title of my bug report lists the
wrong model.

Let me know how else I can help.

Regards,
Ben  


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

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https://bugs.launchpad.net/bugs/1391023

Title:
  the trackpad is not recognized on my ASUS D550MA-DS01

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I'm experiencing the same issue described by users here -- the trackpad
  is not recognized on my ASUS D550MA-DS01.

  xinputs --list shows no trackpad, and running synclient returns
  'Couldn't find synaptics properties. No synaptics driver loaded?'. I
  resort to using an external USB mouse, and run 'sudo modprobe -r
  psmouse' after booting to prevent random/unpredictable input occurring
  when I brush against/click the trackpad.

  I've tried with a number of linux kernels, Ubuntu releases, and other
  distributions.

  The fix suggested by Hans (booting the kernel with psmouse.proto=bare)
  was successful.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  lansdell   2153 F.... pulseaudio
   /dev/snd/controlC1:  lansdell   2153 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Nov  9 18:05:14 2014
  HibernationDevice: RESUME=UUID=76ad838b-370f-4814-968c-1d39350caebb
  InstallationDate: Installed on 2014-05-13 (180 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: ASUSTeK COMPUTER INC. X550LA
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic.efi.signed root=UUID=601d4a6e-da5a-4f6f-95c1-3412f4278552 ro quiet splash psmouse.proto=bare vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.7
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/11/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X550LA.502
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X550LA
  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.:bvrX550LA.502:bd02/11/2014:svnASUSTeKCOMPUTERINC.:pnX550LA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550LA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X550LA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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