kernel-packages team mailing list archive

["niclas.kroon" <1550270@xxxxxxxxxxxxxxxxxx>]

penalvch,
I have begun testing with kernels ranging from 4.2.0 to 4.4.0. After booting 4.2.0 kernel I was about to start bisecting - but while reading the wiki I realized the touchpad two finger scrolling had stopped working again while on kernel 4.2.0. Would it really be necessary to start bisecting since obviously the problem - at least kernel wise must be present in previous 15.10 release - even though I didnt not experience any problems on previous version of ubuntu. That leads me to believe that 1) the problem doesnt seem to be related to the kernel and 2) I'm starting suspect a hardware fault given the randomized type of functionality - there doesnt seem to be any patterns as to when it works or stops working.

I am willing to bisect the kernel commits if you feel that it would give
us any useful information into further mitigate the issue.

Further, I am thinking of installing Ubuntu 15.10 again and see if I can
check some more kernels or if I can reproduce it again there.

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https://bugs.launchpad.net/bugs/1550270

Title:
  Touchpad stops working randomly

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Touchpad stops working randomly, sometimes only scroll function stops
  working but mostly entire mouse freezes. Unable to move around the
  desktop. Cant find anything in dmesg-, xorg- or syslog- logs that
  seems to cause it. A reboot solves the problem temporarily but occures
  soon again so something is borked.

  Description:	Ubuntu Xenial Xerus (development branch)
  Release:	16.04

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xorg 1:7.7+13ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1
  Uname: Linux 4.4.0-6-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  BootLog:

  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Fri Feb 26 11:31:46 2016
  DistUpgraded: 2016-02-23 12:13:20,341 DEBUG enabling apt cron job
  DistroCodename: xenial
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GpuHangFrequency: Several times a day
  GpuHangReproducibility: Seems to happen randomly
  GpuHangStarted: Immediately after installing this version of Ubuntu
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Haswell-ULT Integrated Graphics Controller [17aa:3978]
  InstallationDate: Installed on 2016-02-19 (6 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: LENOVO 20344
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-6-generic root=UUID=56fd75d9-c132-48f8-8cd4-e69995ecae91 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: Upgraded to xenial on 2016-02-23 (2 days ago)
  dmi.bios.date: 10/16/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 96CN29WW(V1.15)
  dmi.board.asset.tag: 31900058WIN
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058WIN
  dmi.chassis.asset.tag: 31900058WIN
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Yoga 2 13
  dmi.modalias: dmi:bvnLENOVO:bvr96CN29WW(V1.15):bd10/16/2014:svnLENOVO:pn20344:pvrLenovoYoga213:rvnLENOVO:rnINVALID:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoYoga213:
  dmi.product.name: 20344
  dmi.product.version: Lenovo Yoga 2 13
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12.2+16.04.20160209-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.67-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.3-2ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160218-1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1
  xserver.bootTime: Fri Feb 26 10:42:31 2016
  xserver.configfile: default
  xserver.errors: systemd-logind: failed to get session: PID 805 does not belong to any known session
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                8237
   vendor                                     AUO
  xserver.version: 2:1.17.3-2ubuntu4

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