Support of Sentelic touchpad in Asus K53U notebook

Sentelic's patch: https://lkml.org/lkml/2012/3/23/1

Merged into Linus tree: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=2f7fa1be66dce77608330c5eb918d6360b5525f2

Do you happen to know if this patch will be submitted to linux-stable?

People affected by this bug are probably wondering why the kernel team doesn't just apply the patch and fix it. The reason is that the kernel team is reluctant (not opposed) to apply any patch to a stable kernel that is not from upstream. Applying patches that don't come from upstream add greatly to the support of the kernel as other upstream patches may touch the same area as the non-upstream patch and may prevent them from applying cleanly.

Please do anything you can to get this in an LTS! It makes it very difficult to use my laptop and most modern laptops being released. Thanks!

@Jim, I've uploaded a testing kernel at http://people.canonical.com/~ycmiao/lp969334/, please help give it a try and see if that works for you. This is really late in the cycle and we cannot guarantee that the feature will be merged, but a verification of whether the patchset is OK will really be appreciated. Thanks.

@Eric: That kernel did the trick!!! The trackpad now recognizes as an actual trackpad in the settings and 2-finger scrolling works like a charm. Thanks! (Asus ROG G74SX Laptop)

With precise stock kernel (-22.35), OSD shows touchpad off on Fn+F9 event and touchpad is still functional.

With kernel in #4, Fn+F9 trigger touchpad on and off and OSD gives me the correct information.

The hardware is Asus K53U

I concur with the ASUS G74SX that the touchpad on/off hotkey on FN-F9 works now as well.

Here is the patch series added to Precise:

Input: sentelic - filter taps in absolute mode
Input: sentelic - improve packet debugging information
Input: sentelic - minor code cleanup
Input: sentelic - enabling absolute coordinates output for newer hardware
Input: sentelic - refactor code for upcoming new hardware support
Input: psmouse - use psmouse_[de]activate() from sentelic and hgpk drivers
Input: psmouse - allow drivers to use psmouse_{de,}activate

Many thanks to everyone; this response was impressive!!!! :)

It does not work with X54C-BBK7. Also, wireless does not work either with this kernel. The wireless card is detected and it recognizes the wireless networks but will not connect or even ask for security.

The kernel also does not work on Asus K53E-BBR15 with the same wireless issue.

wireless for the X54C-BBK7:
 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

wireless for K53E-BBR15
 Network controller: Atheros Communications Inc. AR9485 Wireless Network Adapter (PCI-Express) (rev 01)

Both use the ETPS/2 Elantech Touchpad, so this may not be relevant.....

Hello Anthony, or anyone else affected,

Accepted linux into precise-proposed. The package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

With precise-23.36 kernel, this issue is still around. After upgrade kernel to 3.2.0-24.37, Fn+F9 can toggle touchpad correctly.

I will say the varification is done.

This bug was fixed in the package linux - 3.2.0-24.37

---------------
linux (3.2.0-24.37) precise-proposed; urgency=low

  [ Herton Ronaldo Krzesinski ]

  * d-i: Add hid-logitech-dj to input-modules
    - LP: #975198
  * d-i: Add rtl8187 driver to nic-usb-modules
    - LP: #971719

  [ Ian Abbott ]

  * SAUCE: staging: comedi: Add module parameters for default buffer size
    - LP: #981234
  * SAUCE: staging: comedi: Add kernel config for default buffer sizes
    - LP: #981234

  [ K. Y. Srinivasan ]

  * SAUCE: hv_storvsc: Account for in-transit packets in the RESET path
    - LP: #978394

  [ Leann Ogasawara ]

  * [Config] Set CONFIG_COMEDI_DEFAULT_BUF_[SIZE_KB,MAXSIZE_KB]
    - LP: #981234

  [ Luis Henriques ]

  * SAUCE: ite-cir: postpone ISR registration
    - LP: #984387

  [ Manoj Iyer ]

  * SAUCE: Bluetooth: btusb: Add vendor specific ID (0489 e042) for
    BCM20702A0
    - LP: #980965

  [ Tim Gardner ]

  * Extract firmware module info during getabi
  * [Config] Remove hiq-quanta module references
    - LP: #913164
  * [Config] powerpc-smp: build in ATI and RADEON frame buffer drivers
    - LP: #949288

  [ Trond Myklebust ]

  * SAUCE: NFSv4: Ensure that the LOCK code sets exception->inode
    - LP: #974664
  * SAUCE: NFSv4: Ensure that we check lock exclusive/shared type against
    open modes
    - LP: #974664

  [ Upstream Kernel Changes ]

  * Input: psmouse - allow drivers to use psmouse_{de,}activate
    - LP: #969334
  * Input: psmouse - use psmouse_[de]activate() from sentelic and hgpk
    drivers
    - LP: #969334
  * Input: sentelic - refactor code for upcoming new hardware support
    - LP: #969334
  * Input: sentelic - enabling absolute coordinates output for newer
    hardware
    - LP: #969334
  * Input: sentelic - minor code cleanup
    - LP: #969334
  * Input: sentelic - improve packet debugging information
    - LP: #969334
  * Input: sentelic - filter taps in absolute mode
    - LP: #969334
  * drm/i915: Fixes distorted external screen image on HP 2730p
    - LP: #796030
  * NFSv4: Minor cleanups for nfs4_handle_exception and
    nfs4_async_handle_error
    - LP: #974664
  * NFSv4: Rate limit the state manager for lock reclaim warning messages
    - LP: #974664
  * HID: multitouch: merge quanta driver into hid-multitouch
    - LP: #913164
  * HID: usbhid: add quirk no_get for quanta 3008 devices
    - LP: #913164
 -- Leann Ogasawara <email address hidden> Tue, 24 Apr 2012 07:47:49 -0700

With this new kernel installed from the repositories, now the trackpad doesn't work at all. :(

Ignore my last comment, it works fine now! (For some odd reason, two reboots instead of the typical one seemed to be the trick)

Hi,
My MIS-X370 has a sentelic touchpad, is running 12.04 with 3.2.0-24.39, so the touchpad should work, but side scrolling is not working. Side scrolling does work a little: when moving my finger, both the cursor move and the screen is scrolling, but both very jerky.
When switching on the touchpad, the kernel logs read: psmouse serio1: sentelic: Finger Sensing Pad, hw: 13.2.1, sw: 1.0.0-K
Is this a slightly different version? How can I get it working (and maybe help improving the driver) ?

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.