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[Bug 1504445] Re: FocalTech touchpad stops working after suspend

 

Harakhay, the guy who find a solution in here,
https://bbs.archlinux.org/viewtopic.php?pid=1572218#p1572218 , told me a
little bit more how he solved his problem :

Everybody suggested him to add SUSPEND_MODULES="psmouse" in
/etc/pm/config.d/modules, but it didn't help for him. So he found all
modules dependent upon psmouse, and some dependent upon those modules as
well. He had about 6 of them. Then he did this trick with all these
modules (unload on suspend, load on resume), and he found out that it
works. Then only thing he needed to do was to find out what module from
those 6 is needed to be reloaded....

Now, to try his solution, because i8042 doesn't works in my case, I need
to how to find all modules dependent upon psmouse, and some dependent
upon those modules as well...

Does anyone can help me with that?

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https://bugs.launchpad.net/bugs/1504445

Title:
   FocalTech touchpad stops working after suspend

Status in linux package in Ubuntu:
  Triaged

Bug description:
  I have an Asus V502LX the persian version of the Asus K501LX.

  I have Ubuntu 14.04 installed and the kernel 4.1.6 installed. I had to
  install the kernel 4.1.6 to have the touchpad recognised. Under kernel
  3.19.30, as I am running now to file in this bug, the touchpad is
  recognised as a simple mouse (no two fingers scrolling...) and the
  problem I am describing below is also present...

  I noticed one problem. The Focaltech touchpad is not working after
  suspending the computer.

  Here is what I could find about the touchpad in
  /proc/bus/input/devices

  I: Bus=0011 Vendor=0002 Product=0012 Version=0000
  N: Name="FocalTechPS/2 FocalTech FocalTech Touchpad"
  P: Phys=isa0060/serio1/input0
  S: Sysfs=/devices/platform/i8042/serio1/input/input5
  U: Uniq=
  H: Handlers=mouse0 event4
  B: PROP=5
  B: EV=b
  B: KEY=e520 10000 0 0 0 0
  B: ABS=260800000000003

  Before suspending the computer, I can deactivate and activate again
  the touchpad with the hotkey of my keyboard without problem. However,
  once the computer suspended, nothing work to re-activate the touchpad.

  I tried a solution given on internet but it doesn't work properly.

  I created a file here /etc/pm/sleep.d/0000trackpad
  sudo gedit /etc/pm/sleep.d/0000trackpad

  and add the following
  #!/bin/sh
  case "$1" in
      suspend|hibernate)
          modprobe -r psmouse;
      resume|thaw)
          modprobe psmouse;
  esac

  With this file, the computer refuse to suspend. The touchpad keep
  working so it does something but I can't make my computer sleeping...

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.19.0-30-generic 3.19.0-30.34~14.04.1
  ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6
  Uname: Linux 3.19.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Oct  9 12:05:16 2015
  InstallationDate: Installed on 2015-09-26 (12 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  SourcePackage: linux-lts-vivid
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  yogo       2073 F.... pulseaudio
   /dev/snd/controlC0:  yogo       2073 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=943b03af-c1bf-489e-8e42-485931fc619c
  InstallationDate: Installed on 2015-09-26 (12 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
   Bus 001 Device 003: ID 8087:07dc Intel Corp. 
   Bus 001 Device 002: ID 04f2:b483 Chicony Electronics Co., Ltd 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. K501LX
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic.efi.signed root=UUID=37bd087e-a2f6-437e-8d20-b19536eb738a ro quiet splash acpi_osi= vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-30.34~14.04.1-generic 3.19.8-ckt6
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-30-generic N/A
   linux-backports-modules-3.19.0-30-generic  N/A
   linux-firmware                             1.127.15
  Tags:  trusty
  Uname: Linux 3.19.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo www-data
  _MarkForUpload: True
  dmi.bios.date: 04/16/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: K501LX.203
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: K501LX
  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.:bvrK501LX.203:bd04/16/2015:svnASUSTeKCOMPUTERINC.:pnK501LX:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK501LX:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: K501LX
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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