[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.4.0-78.99

---
linux (4.4.0-78.99) xenial; urgency=low

  * linux: 4.4.0-78.99 -proposed tracker (LP: #1686645)

  * Please backport fix to reference leak in cgroup blkio throttle
(LP: #1683976)
- block: fix module reference leak on put_disk() call for cgroups throttle

  * UbuntuKVM guest crashed while running I/O stress test with Ubuntu kernel
4.4.0-47-generic (LP: #1659111)
- block: Unhash block device inodes on gendisk destruction
- block: Use pointer to backing_dev_info from request_queue
- block: Dynamically allocate and refcount backing_dev_info
- block: Make blk_get_backing_dev_info() safe without open bdev
- block: Get rid of blk_get_backing_dev_info()
- block: Move bdev_unhash_inode() after invalidate_partition()
- block: Unhash also block device inode for the whole device
- block: Revalidate i_bdev reference in bd_aquire()
- block: Initialize bd_bdi on inode initialization
- block: Move bdi_unregister() to del_gendisk()
- block: Allow bdi re-registration
- bdi: Fix use-after-free in wb_congested_put()
- block: Make del_gendisk() safer for disks without queues
- block: Fix bdi assignment to bdev inode when racing with disk delete
- bdi: Mark congested->bdi as internal
- bdi: Make wb->bdi a proper reference
- bdi: Unify bdi->wb_list handling for root wb_writeback
- bdi: Shutdown writeback on all cgwbs in cgwb_bdi_destroy()
- bdi: Do not wait for cgwbs release in bdi_unregister()
- bdi: Rename cgwb_bdi_destroy() to cgwb_bdi_unregister()
- block: Fix oops in locked_inode_to_wb_and_lock_list()
- kobject: Export kobject_get_unless_zero()
- block: Fix oops scsi_disk_get()

  * Touchpad not working correctly after kernel upgrade (LP: #1662589)
- Input: ALPS - fix V8+ protocol handling (73 03 28)

  * Xenial update to v4.4.62 stable release (LP: #1683728)
- drm/i915: Avoid tweaking evaluation thresholds on Baytrail v3
- drm/i915: Stop using RP_DOWN_EI on Baytrail
- usb: dwc3: gadget: delay unmap of bounced requests
- mtd: bcm47xxpart: fix parsing first block after aligned TRX
- MIPS: Introduce irq_stack
- MIPS: Stack unwinding while on IRQ stack
- MIPS: Only change $28 to thread_info if coming from user mode
- MIPS: Switch to the irq_stack in interrupts
- MIPS: Select HAVE_IRQ_EXIT_ON_IRQ_STACK
- MIPS: IRQ Stack: Fix erroneous jal to plat_irq_dispatch
- crypto: caam - fix RNG deinstantiation error checking
- Linux 4.4.62

  * ifup service of network device stay active after driver stop (LP: #1672144)
- net: use net->count to check whether a netns is alive or not

  * [Hyper-V] mkfs regression in kernel 4.4+ (LP: #1682215)
- block: relax check on sg gap

  * [Feature] KBL: intel_powerclamp driver support (LP: #1591641)
- thermal/powerclamp: remove cpu whitelist
- thermal/powerclamp: correct cpu support check
- thermal/powerclamp: add back module device table

  * sysfs channel reads of lps22hb pressure sensor are stale (LP: #1682103)
- iio: st_pressure: initialize lps22hb bootime

  * Backlight control does not work and there are no entries in
/sys/class/backlight (LP: #1667323)
- Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6"

  * [Feature] KBL: intel_rapl driver support (LP: #1591640)
- powercap/intel_rapl: Add support for Kabylake

  * Xenial update to v4.4.61 stable release (LP: #1682140)
- drm/vmwgfx: Type-check lookups of fence objects
- drm/vmwgfx: NULL pointer dereference in vmw_surface_define_ioctl()
- drm/vmwgfx: avoid calling vzalloc with a 0 size in vmw_get_cap_3d_ioctl()
- drm/ttm, drm/vmwgfx: Relax permission checking when opening surfaces
- drm/vmwgfx: Remove getparam error message
- drm/vmwgfx: fix integer overflow in vmw_surface_define_ioctl()
- sysfs: be careful of error returns from ops->show()
- staging: android: ashmem: lseek failed due to no FMODE_LSEEK.
- arm/arm64: KVM: Take mmap_sem in stage2_unmap_vm
- arm/arm64: KVM: Take mmap_sem in kvm_arch_prepare_memory_region
- iio: bmg160: reset chip when probing
- Reset TreeId to zero on SMB2 TREE_CONNECT
- ptrace: fix PTRACE_LISTEN race corrupting task->state
- ring-buffer: Fix return value check in test_ringbuffer()
- metag/usercopy: Drop unused macros
- metag/usercopy: Fix alignment error checking
- metag/usercopy: Add early abort to copy_to_user
- metag/usercopy: Zero rest of buffer from copy_from_user
- metag/usercopy: Set flags before ADDZ
- metag/usercopy: Fix src fixup in from user rapf loops
- metag/usercopy: Add missing fixups
- powerpc/mm: Add missing global TLB invalidate if cxl is active
- powerpc: Don't try to fix up misaligned load-with-reservation instructions
- nios2: reserve boot memory for device tree
- s390/decompressor: fix initrd corruption caused by bss 

[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Launchpad Bug Tracker]

This bug was fixed in the package linux - 4.8.0-52.55

---
linux (4.8.0-52.55) yakkety; urgency=low

  * linux: 4.8.0-52.55 -proposed tracker (LP: #1686976)

  * CVE-2017-7477: macsec: avoid heap overflow in skb_to_sgvec (LP: #1685892)
- macsec: avoid heap overflow in skb_to_sgvec
- macsec: dynamically allocate space for sglist

  * net/ipv4: original ingress device index set as the loopback interface.
(LP: #1683982)
- net: fix incorrect original ingress device index in PKTINFO

  * Touchpad not working correctly after kernel upgrade (LP: #1662589)
- Input: ALPS - fix V8+ protocol handling (73 03 28)

  * ifup service of network device stay active after driver stop (LP: #1672144)
- net: use net->count to check whether a netns is alive or not

  * [Hyper-V] mkfs regression in kernel 4.4+ (LP: #1682215)
- block: relax check on sg gap

  * Potential memory corruption with capi adapters (LP: #1681469)
- powerpc/mm: Add missing global TLB invalidate if cxl is active

  * [Hyper-V/Azure] Please include Mellanox OFED drivers in Azure kernel and
image (LP: #1650058)
- net/mlx4_en: Fix bad WQE issue
- net/mlx4_core: Fix racy CQ (Completion Queue) free
- net/mlx4_core: Fix when to save some qp context flags for dynamic VST to 
VGT
  transitions
- net/mlx4_core: Avoid command timeouts during VF driver device shutdown

 -- Stefan Bader   Fri, 28 Apr 2017 12:17:12
+0200

** Changed in: linux (Ubuntu Yakkety)
   Status: Fix Committed => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-7477

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Paul Donohue]

Sounds like they want both the Xenial and Yakkety kernels tested.  You
should be able to install the yakkety kernel on Xenial if you don't want
to upgrade now.

It may be easier to just grab the relevant packages from the launchpad page:
https://launchpad.net/ubuntu/+source/linux
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/12486778/+files/linux-image-4.4.0-78-generic_4.4.0-78.99_amd64.deb
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/bootstrap/+build/12492144/+files/linux-image-4.8.0-52-generic_4.8.0-52.55_amd64.deb

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi.  Not sure who this request is for as I'm not running yakkety.  I
could install but I won't have time this week.

Thanks,
Nick.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Kleber Sacilotto de Souza]

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-
yakkety' to 'verification-done-yakkety'. If the problem still exists,
change the tag 'verification-needed-yakkety' to 'verification-failed-
yakkety'.

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!

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Kleber Sacilotto de Souza]

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-
xenial' to 'verification-done-xenial'. If the problem still exists,
change the tag 'verification-needed-xenial' to 'verification-failed-
xenial'.

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!


** Tags added: verification-needed-xenial

** Tags added: verification-needed-yakkety

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Thadeu Lima de Souza Cascardo]

** Changed in: linux (Ubuntu Yakkety)
   Status: In Progress => Fix Committed

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Thadeu Lima de Souza Cascardo]

** Changed in: linux (Ubuntu Xenial)
   Status: In Progress => Fix Committed

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

** Changed in: linux (Ubuntu Zesty)
   Status: In Progress => Fix Released

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi. I installed the test kernel and the trackpad is working fine.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

The commit that fixes this bug has landed in mainline:

commit e7348396c6d51b57c95c6646c390cd078e038e19
Author: Masaki Ota 
Date:   Fri Mar 17 14:10:57 2017 -0700

Input: ALPS - fix V8+ protocol handling (73 03 28)

I built a test kernel with this commit and posted it to:
http://kernel.ubuntu.com/~jsalisbury/lp1662589/

Can you test this kernel and see if it resolves this bug?

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

That could be possible.  I'll review all the patches and build a test
kernel once the one for this bug lands.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Paul Donohue]

When that happens, could you grab the other Alps fixes too?
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-synaptics/+bug/1590590/comments/77

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I'll monitor upstream and pick the patch into Ubuntu when it lands in mainline 
or linux-next:
https://lkml.org/lkml/2017/3/17/627

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

Thanks for all the help testing, Nick.  I'll ping the patch author for
some feedback.

** Also affects: linux (Ubuntu Yakkety)
   Importance: Undecided
   Status: New

** Changed in: linux (Ubuntu Yakkety)
   Status: New => In Progress

** Changed in: linux (Ubuntu Yakkety)
   Importance: Undecided => High

** Changed in: linux (Ubuntu Yakkety)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

** Also affects: linux (Ubuntu Zesty)
   Importance: High
 Assignee: Joseph Salisbury (jsalisbury)
   Status: In Progress

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi.
linux-image-4.4.0-64-generic 4.4.0-64.85~lp1662589Commit6909b9d00Reverted

The trackpad is working fine!

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

The following commit was reported as the first bad commit by the bisect:

commit 6909b9d008f2459bb85c502c3a43aa7e3a7a65c0
Author: Ben Gamari 
Date:   Wed Nov 30 18:11:02 2016 +0800

Input: ALPS - set DualPoint flag for 74 03 28 devices


I built a test kernel with this commit reverted.  The kernel can be downloaded 
from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589

Can you test that kernel and see if if resolves this bug?`

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi,

linux-image-4.4.0-56-generic 4.4.0-56.77~lp1662589Commit08166fa090

Trackpad working fine.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
08166fa0902cbcbe598bbddc1f8904e0bcc000b7

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589

Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on your test results.

Thanks in advance

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi,

With linux-image-4.4.0-56-generic 4.4.0-56.77~lp1662589Commit6909b9d008
the trackpad is NOT working correctly.

Thanks.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
6909b9d008f2459bb85c502c3a43aa7e3a7a65c0

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589

Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on your test results.

Thanks in advance

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi.

Trackpad fine with the latest test kernel.
linux-image-4.4.0-56-generic   4.4.0-56.77~lp1662589Commit02645a42d6

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
02645a42d6814808758eff5ae6a37a5715533787

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589

Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on your test results.

Thanks in advance

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi.

With this version of 4.4.0-56-generic that trackpad works fine.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I built the next test kernel, up to the following commit:
40ab4ccefb9d9dfe7a6ccd5f150ec78ab604b411

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589

Can you test that kernel and report back if it has the bug or not? I
will build the next test kernel based on your test results.

Thanks in advance

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Hi.  Downloaded and installed the new version of 4.4.0-56-generic.
Trackpad issues remain.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

Correcting to comments #32 and #33.  I am bisecting between 4.4.0-55 and
4.4.0-56.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I started a kernel bisect between -56 and -57. The kernel bisect will
require testing of about 5 test kernels.

I built the first test kernel, up to the following commit:
0cd611da7d4c01b178144bc17da8cd92cae2b1fa

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589

Can you test that kernel and report back if it has the bug or not?  I
will build the next test kernel based on your test results.


Thanks in advance

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

There are a few commits between -56 and -57 that could have introduced
this regression:

6909b9d Input: ALPS - set DualPoint flag for 74 03 28 devices
08166fa Input: ALPS - allow touchsticks to report pressure
02645a4 Input: ALPS - handle 0-pressure 1F events
89e4686 Input: ALPS - add touchstick support for SS5 hardware

I'll start a kernel bisect and post a test kernel shortly.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

4.4.0-56-generic - trackpad not working correctly.  This is the first
one that has the AlpsPS/2 devices.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I built a 4.4.0-56 kernel. It can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589/

Can you give this kernel a test.

That will tell us if we need to bisect between -55 and -56 or -56 and
-57.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

4.4.0-55-generic - trackpad fine.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I built a 4.4.0-55 kernel. It can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589/

Can you give this kernel a test.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

4.4.0-54-generic - trackpad working fine.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

I built a 4.4.0-54 kernel.  It can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1662589/

Can you give this kernel a test.  You would need to install both the
linux-image and linux-image-extra .deb packages.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

4.4.0-57 bad I'm afraid.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

The -57 kernel is here:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/11544958

However, -54 through -56 kernel were never copied to the archive.  I'll
build the kernels manually based on the -57 test results.  If -57 is
good, we can bisect between -57 and -58.   If it's bad, we'll have to
test earlier kernels.

** Changed in: linux (Ubuntu Xenial)
   Status: Incomplete => In Progress

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

** Changed in: linux (Ubuntu)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

** Changed in: linux (Ubuntu Xenial)
 Assignee: (unassigned) => Joseph Salisbury (jsalisbury)

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

So, that was a lot of fun.

Up to 4.4.0-53 - trackpad worked fine.

I couldn't easily find any other kernel versions until 4.4.0-58 and that
one the trackpad didn't work correctly.

4.4.0-58 was the first to have the AlpsPS/2 devices installed.

If you can point me to 54-57 I can try those too.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

Can you give the 4.4.0-33 kernel a try:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/10505796

To perform a bisect, we need to find the last good version and first bad 
version out of these kernels:
https://launchpad.net/ubuntu/xenial/+source/linux

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

All fine in 4.4.0-31.

Installed 4.4.0-32 and scrolling worked fine, *but* none of the external
ports I use worked, no USB or hdmi.

I don't ever recall being offered 4.4.0-32 via the normal updates.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

Does the bug go away if you boot back into kernel version 4.4.0-31?

Can you confirm the bug happens with 4.4.0-32:
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/10489149

We can bisect between these two versions if -31 is good and -32 is bad.

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

4.10.0-041000rc7-generic - Issue still present.


** Tags added: kernel-bug-exists-upstream

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

apport information

** Tags added: apport-collected

** Description changed:

  Since the kernel upgraded from 4.4.0-31-generic the touchpad on my
  Toshiba Tecra laptop has not been functioning correctly.
  
  Whenever I try and do two finger srcolling it also thinks I'm doing a
  two finger tap to to rightclick, making two finger scrolling almost
  impossible.
  
  It is the same for both kernel updates since 4.4.0-31.  If I boot from
  4.4.0-31 then the touchpad works fine.
  
  If I do an xinput in the later kernels it shows :-
  ⎡ Virtual core pointerid=2[master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer  id=4[slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Wired Keyboard 600id=10   [slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Comfort Mouse 6000id=11   [slave  pointer 
 (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint Stick   id=15   [slave  pointer 
 (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPadid=14   [slave  pointer 
 (2)]
  ⎣ Virtual core keyboard   id=3[master keyboard (2)]
  ↳ Virtual core XTEST keyboard id=5[slave  
keyboard (3)]
  ↳ Power Buttonid=6[slave  
keyboard (3)]
  ↳ Video Bus   id=7[slave  
keyboard (3)]
  ↳ Power Buttonid=8[slave  
keyboard (3)]
  ↳ Microsoft Wired Keyboard 600id=9[slave  
keyboard (3)]
  ↳ TOSHIBA Web Camera - FHDid=12   [slave  
keyboard (3)]
  ↳ AT Translated Set 2 keyboardid=13   [slave  
keyboard (3)]
  ↳ Toshiba input device  
  
  
  The AlpsPS/2 devices aren't aren't present when booting with 4.4.0.31:
  
  ⎡ Virtual core pointerid=2[master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer  id=4[slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Wired Keyboard 600id=10   [slave  pointer 
 (2)]
  ⎜   ↳ Microsoft Comfort Mouse 6000id=11   [slave  pointer 
 (2)]
  ⎜   ↳ ImPS/2 Generic Wheel Mouse  id=14   [slave  pointer  (2)]
  ⎣ Virtual core keyboard   id=3[master keyboard (2)]
  ↳ Virtual core XTEST keyboard id=5[slave  
keyboard (3)]
  ↳ Power Buttonid=6[slave  
keyboard (3)]
  ↳ Video Bus   id=7[slave  
keyboard (3)]
  ↳ Power Buttonid=8[slave  
keyboard (3)]
  ↳ Microsoft Wired Keyboard 600id=9[slave  
keyboard (3)]
  ↳ TOSHIBA Web Camera - FHDid=12   [slave  
keyboard (3)]
  ↳ AT Translated Set 2 keyboardid=13   [slave  
keyboard (3)]
  ↳ Toshiba input deviceid=15 [slave  keyboard 
(3)]
  
  Any ideas?
  
  Thanks.
+ --- 
+ ApportVersion: 2.20.1-0ubuntu2.5
+ Architecture: amd64
+ AudioDevicesInUse:
+  USERPID ACCESS COMMAND
+  /dev/snd/controlC0:  nick   1867 F pulseaudio
+ CurrentDesktop: Unity
+ DistroRelease: Ubuntu 16.04
+ HibernationDevice: RESUME=UUID=5f888cc2-be17-45fe-9b4c-c8cf49eb1db8
+ InstallationDate: Installed on 2017-02-03 (4 days ago)
+ InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
+ MachineType: TOSHIBA TECRA A40-C
+ Package: linux (not installed)
+ ProcFB: 0 inteldrmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-62-generic.efi.signed 
root=UUID=7c18c2ca-0cc6-4c2c-80ba-194bbbc22646 ro quiet splash vt.handoff=7
+ ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40
+ RelatedPackageVersions:
+  linux-restricted-modules-4.4.0-62-generic N/A
+  linux-backports-modules-4.4.0-62-generic  N/A
+  linux-firmware1.157.6
+ Tags:  xenial xenial
+ Uname: Linux 4.4.0-62-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ _MarkForUpload: True
+ dmi.bios.date: 07/12/2016
+ dmi.bios.vendor: TOSHIBA
+ dmi.bios.version: Version 7.40
+ dmi.board.asset.tag: 00
+ dmi.board.name: TECRA A40-C
+ dmi.board.vendor: TOSHIBA
+ dmi.board.version: Version A0
+ dmi.chassis.asset.tag: 00
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: TOSHIBA
+ dmi.chassis.version: Version 1.0
+ dmi.modalias: 
dmi:bvnTOSHIBA:bvrVersion7.40:bd07/12/2016:svnTOSHIBA:pnTECRAA40-C:pvrPS463E-01C003EN:rvnTOSHIBA:rnTECRAA40-C:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
+ dmi.product.name: TECRA A40-C
+ dmi.product.version: PS463E-01C003EN
+ dmi.sys.vendor: TOSHIBA

** Attachment added: "AlsaInfo.txt"
   
https://bugs.launchpad.net/bugs/1662589/+attachment/4814927/+files/AlsaInfo.txt

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Joseph Salisbury]

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.10 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc7

** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Tags added: kernel-da-key needs-bisect xenial

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
   Status: New

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

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => High

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Paul White]

** Package changed: ubuntu => linux (Ubuntu)

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[Bug 1662589] Re: Touchpad not working correctly after kernel upgrade

[Nick Fletcher]

Ubuntu 16.04

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