kernel-packages team mailing list archive

[Ramiro Morales <cramm0@xxxxxxxxx>]

I'm closing this one because:

The 2014 Thinkpad Edge E440 and E540 models both identify their trackpad
with the same pnp ID LEN2006 but they have different logical sizes.

The synaptics driver in kernel 3.x is unable to tell them apart and a
patch which makes the kernel to assume the system is a E540 has been
already applied and clashes with the pones proposed here.

The driver shortcoming is fixed in Linux 4.0 but the infrastructure in
the synaptics driver has been totally revamped in a way which IMHO has
no chances to be backported to 3.x

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https://bugs.launchpad.net/bugs/1395243

Title:
  Please add min/max quirk for pnp-id LEN2006 (Lenovo Thinkpad Edge
  E440)

Status in linux package in Ubuntu:
  Triaged

Bug description:
  This a request to get a quirk added upstream for the Synaptics
  ClickPad (buttonless trackpad) of the Lenovo Edge E440 to the
  synaptics kernel driver so the right coordinates for the surface
  corners are reported and the pointer functionality is correct.

  $ lsb_release -rd
  Description:	Ubuntu 14.04.1 LTS
  Release:	14.04

  $ cat /sys/class/dmi/id/product_version
  ThinkPad Edge E440

  $ cat /sys/devices/pnp0/*/id
  PNP0c01
  PNP0c02
  PNP0103
  PNP0200
  PNP0800
  PNP0c04
  PNP0b00
  LEN0071
  PNP0303
  LEN2006
  PNP0f13
  SMO1200
  PNP0c31

  $ dmesg | grep -i synaptics
  [    3.757743] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x127c00, board id: 2691, fw id: 1494646
  [    3.757746] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0
  [    3.804025] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input4

  $ sudo ./touchpad-edge-detector /dev/input/event3
  Touchpad SynPS/2 Synaptics TouchPad on /dev/input/event3
  Move one finger around the touchpad to detect the actual edges
  Kernel says:  x [1472..5044], y [1408..3398]
  Touchpad sends:       x [1024..5045], y [2457..4832] /^C

  I will be attaching a patch tomorrow.

  Similar changes have been requested for other Thinkpad models also
  shipping these new ClikcPads, via other distributions' bug trackers,
  forwarded upstream, and successfully incorporated in mainstream kernel
  code. See e.g.

  https://bugzilla.redhat.com/show_bug.cgi?id=1114768 and
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/input/mouse/synaptics.c?id=e76aed9da7189eeb41b9856552ce5721181e8e8d

  https://bugzilla.opensuse.org/show_bug.cgi?id=903748 and
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/input/mouse/synaptics.c?id=e4742b1e786ca386e88e6cfb2801e14e15e365cd

  https://bugzilla.redhat.com/show_bug.cgi?id=1096436 and
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/input/mouse/synaptics.c?id=0b5fe736fe923f1f5e05413878d5990e92ffbdf5

  Thanks.
  ---
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ramiro     2285 F.... pulseaudio
   /dev/snd/controlC0:  ramiro     2285 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=e05d02a5-1ae0-4306-a2c1-41785992e9a8
  InstallationDate: Installed on 2014-07-05 (140 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 20C5A03CAC
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic root=UUID=2ee8855d-0441-4ebf-9fbc-c2ca1e16fe80 ro quiet splash acpi_backlight=vendor i915.disable_power_well=0 vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-39-generic N/A
   linux-backports-modules-3.13.0-39-generic  N/A
   linux-firmware                             1.127.8
  Tags:  trusty
  Uname: Linux 3.13.0-39-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 10/14/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: J9ET96WW (2.16 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20C5A03CAC
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrJ9ET96WW(2.16):bd10/14/2014:svnLENOVO:pn20C5A03CAC:pvrThinkPadEdgeE440:rvnLENOVO:rn20C5A03CAC:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20C5A03CAC
  dmi.product.version: ThinkPad Edge E440
  dmi.sys.vendor: LENOVO

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