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

 

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 <stefan.bader@xxxxxxxxxxxxx>  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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https://bugs.launchpad.net/bugs/1662589

Title:
  Touchpad not working correctly after kernel upgrade

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Released
Status in linux source package in Zesty:
  Fix Released

Bug description:
  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 pointer                    	id=2	[master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
  ⎜   ↳ Microsoft Wired Keyboard 600            	id=10	[slave  pointer  (2)]
  ⎜   ↳ Microsoft Comfort Mouse 6000            	id=11	[slave  pointer  (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint Stick           	id=15	[slave  pointer  (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPad        	id=14	[slave  pointer  (2)]
  ⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
      ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
      ↳ Power Button                            	id=6	[slave  keyboard (3)]
      ↳ Video Bus                               	id=7	[slave  keyboard (3)]
      ↳ Power Button                            	id=8	[slave  keyboard (3)]
      ↳ Microsoft Wired Keyboard 600            	id=9	[slave  keyboard (3)]
      ↳ TOSHIBA Web Camera - FHD                	id=12	[slave  keyboard (3)]
      ↳ AT Translated Set 2 keyboard            	id=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 pointer                    	id=2	[master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
  ⎜   ↳ Microsoft Wired Keyboard 600            	id=10	[slave  pointer  (2)]
  ⎜   ↳ Microsoft Comfort Mouse 6000            	id=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 Button                            	id=6	[slave  keyboard (3)]
      ↳ Video Bus                               	id=7	[slave  keyboard (3)]
      ↳ Power Button                            	id=8	[slave  keyboard (3)]
      ↳ Microsoft Wired Keyboard 600            	id=9	[slave  keyboard (3)]
      ↳ TOSHIBA Web Camera - FHD                	id=12	[slave  keyboard (3)]
      ↳ AT Translated Set 2 keyboard            	id=13	[slave  keyboard (3)]
      ↳ Toshiba input device                    	id=15 [slave  keyboard (3)]

  Any ideas?

  Thanks.
  --- 
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID 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-firmware                            1.157.6
  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: 0000000000
  dmi.board.name: TECRA A40-C
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Version A0
  dmi.chassis.asset.tag: 0000000000
  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

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