psmouse serio1: Trackpad lost sync at byte 1 ... driver resynced

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It looks like we just need to set the finger count to 0 in the case of palm detect. I'll put together a patch that can be sent upstream and SRU'd to the stable releases. I'll build a test kernel and post a link to it shortly.

I posted a test kernel for download at:
http://kernel.ubuntu.com/~jsalisbury/lp1229361/

Can you test this kernel and see if it resolves this bug? Note, you will have to install both the linux-image and linux-image-extra .deb packages.

Thanks in advance!

Hi Joseph

Thank you for the very fast response! I've just installed it and tested it: No more flooding of kern.log and the palm detection works much better: no more jumping from window to window.

Without seeing a patch, I guess you've changed the result code in cypress_get_finger_count (as in https://bugs.launchpad.net/dell-sputnik/+bug/1048258/comments/41 ), right?

Dave

Thanks for testing, David. Yes that is what the patch does. I'll submit this patch for inclusion upstream and in the stable Ubuntu kernels.

This bug was fixed in the package linux - 3.11.0-9.16

---------------
linux (3.11.0-9.16) saucy; urgency=low

  [ Andy Whitcroft ]

  * Revert "SAUCE: (no-up) scsi: hyper-v storage -- mark as preferring READ
    CAPACITY (16) at SPC-2"
  * Revert "SAUCE: (no-up) scsi: hyper-v storage -- mark as VPD capable at
    SPC-2"
  * Revert "SAUCE: (no-up) scsi: add scsi device flag to request READ
    CAPACITY (16) be preferred"
  * Revert "SAUCE: (no-up) scsi: add scsi device flag to request VPD pages
    be used at SPC-2"

  [ Seth Forshee ]

  * SAUCE: (no-up) ACPI: Disable Windows 8 compatibility for some Lenovo
    ThinkPads
    - LP: #1183856

  [ Tim Gardner ]

  * [Config] CONFIG_CRYPTO_CRCT10DIF=y, CONFIG_CRYPTO_CRCT10DIF_PCLMUL=m
  * [packaging] Bump ABI for every new release
  * rebase to v3.11.2
  * Release tracker
    - LP: #1231999

  [ Upstream Kernel Changes ]

  * scsi: hyper-v storsvc switch up to SPC-3
  * perf/x86: Add Silvermont (22nm Atom) support
    - LP: #1091539
  * perf/x86/intel: Fix Silvermont offcore masks
    - LP: #1091539
  * modules: add support for soft module dependencies
    - LP: #1188010
  * Reinstate "crypto: crct10dif - Wrap crc_t10dif function all to use
    crypto transform framework"
    - LP: #1188010
  * skge: fix broken driver
    - LP: #1216745
  * Input: cypress_ps2 - Return zero finger count if palm is detected.
    - LP: #1229361
  * udf: Standardize return values in mount sequence
    - LP: #1228751
  * udf: Refuse RW mount of the filesystem instead of making it RO
    - LP: #1228751
  * rebase to v3.11.2
 -- Tim Gardner <email address hidden> Mon, 23 Sep 2013 07:41:07 -0600

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-raring' to 'verification-done-raring'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

I've successfully tested this on a fresh install of raring:

3.8.0-19.30: kern.log is flooded with messages as in this bug's description
3.8.0-32.47: no more flooding, palm is properly detected, bug seems fixed

This bug was fixed in the package linux - 3.8.0-32.47

---------------
linux (3.8.0-32.47) raring; urgency=low

  [Steve Conklin]

  * Release Tracking Bug
    - LP: #1233777

  [ Upstream Kernel Changes ]

  * Revert "net/core/sock.c: add missing VSOCK string in
    af_family_*_key_strings"
    - LP: #1233227
  * Input: cypress_ps2 - Return zero finger count if palm is detected.
    - LP: #1229361
  * isofs: Refuse RW mount of the filesystem instead of making it RO
    - LP: #1228751
  * udf: Standardize return values in mount sequence
    - LP: #1228751
  * udf: Refuse RW mount of the filesystem instead of making it RO
    - LP: #1228751
  * ARM: update FIQ support for relocation of vectors
    - LP: #1233227
  * ARM: Fix FIQ code on VIVT CPUs
    - LP: #1233227
  * regmap: Add another missing header for !CONFIG_REGMAP stubs
    - LP: #1233227
  * ALSA: hda - Add inverted digital mic fixup for Acer Aspire One
    - LP: #1233227
  * mac80211: add missing channel context release
    - LP: #1233227
  * iwl4965: fix rfkill set state regression
    - LP: #1233227
  * ath9k_htc: Restore skb headroom when returning skb to mac80211
    - LP: #1233227
  * ath9k: Enable PLL fix only for AR9340/AR9330
    - LP: #1233227
  * ALSA: hda - Fix NULL dereference with CONFIG_SND_DYNAMIC_MINORS=n
    - LP: #1233227
  * lparcfg: don't bother saving pointer to proc_dir_entry
    - LP: #1233227
  * powerpc/pseries/lparcfg: Fix possible overflow are more than 1026
    - LP: #1233227
  * powerpc: Don't Oops when accessing /proc/powerpc/lparcfg without
    hypervisor
    - LP: #1233227
  * powerpc: Work around gcc miscompilation of __pa() on 64-bit
    - LP: #1233227
  * powerpc/hvsi: Increase handshake timeout from 200ms to 400ms.
    - LP: #1233227
  * net: Check the correct namespace when spoofing pid over SCM_RIGHTS
    - LP: #1233227
  * ALSA: opti9xx: Fix conflicting driver object name
    - LP: #1233227
  * SUNRPC: Fix memory corruption issue on 32-bit highmem systems
    - LP: #1233227
  * drivers/base/memory.c: fix show_mem_removable() to handle missing
    sections
    - LP: #1233227
  * memcg: check that kmem_cache has memcg_params before accessing it
    - LP: #1233227
  * workqueue: cond_resched() after processing each work item
    - LP: #1233227
  * drm/i915: ivb: fix edp voltage swing reg val
    - LP: #1233227
  * drm/vmwgfx: Split GMR2_REMAP commands if they are to large
    - LP: #1233227
  * af_key: initialize satype in key_notify_policy_flush()
    - LP: #1233227
  * Linux 3.8.13.9
    - LP: #1233227
  * zram: allow request end to coincide with disksize
    - LP: #1233227
  * mtd: nand: fix NAND_BUSWIDTH_AUTO for x16 devices
    - LP: #1233227
  * HID: hidraw: correctly deallocate memory on device disconnect
    - LP: #1233227
  * xen-gnt: prevent adding duplicate gnt callbacks
    - LP: #1233227
  * ath9k: always clear ps filter bit on new assoc
    - LP: #1233227
  * ceph: Don't forget the 'up_read(&osdc->map_sem)' if met error.
    - LP: #1233227
  * libceph: unregister request in __map_request failed and nofail == false
    - LP: #1233227
  * usb: config->desc.bLength may not exceed amount of data returned by the
    device
    - LP: #12332...

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-saucy' to 'verification-done-saucy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

Marking as verified as the fix has been published in Saucy's stable branch for a long time now.

I am facing quite a similar bug.

[ 5064.348229] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6
[ 5064.374647] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6
[ 5064.401144] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6
[ 5064.427147] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6
[ 5064.453618] psmouse serio1: Touchpad at isa0060/serio1/input0 lost sync at byte 6
[ 5064.453630] psmouse serio1: issuing reconnect request

The touchpad is not responding during several seconds. It could happen again some seconds later or not happen during hours.
This is very annoying :(

Note: I had this issues years ago then it disappeared (maybe thanks to the fix associated to this thread) and now this problem is back (from one month or two).

In my case, scrolling sometimes stops working. If I switch to a VT then back to X, it starts working again.

This started happening when I upgraded to 15.04.