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[Gian Piero de Medici <gpdemedici@xxxxxx>]

I need help with this:

"Take a look first to see what you can learn"(...)"Sometimes you can
easily find the problem if it's in a subsystem that only has changes
from a few patches.(...)" from
https://wiki.ubuntu.com/Kernel/KernelBisection

I have attached the output from 
git log --oneline Ubuntu-4.1.0-3.3..Ubuntu-4.2.0-7.7
as "gitlog-oneline-4.1.0-3.3--4.2.0-7.7-2016-0101.txt"

Does this output contain something that can help me save some steps?

Otherwise I get this:

piero@bianco:~/ubuntu-wily$ git bisect start Ubuntu-4.2.0-7.7 Ubuntu-4.1.0-3.3
Checking out files: 100% (7019/7019), done.
Previous HEAD position was 4aa705b... Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Switched to branch 'mybisect'
Your branch is up-to-date with 'origin/master'.
Bisecting: a merge base must be tested
[b953c0d234bc72e8489d3bf51a276c5c4ec85345] Linux 4.1

piero@bianco:~/ubuntu-wily$ git bisect good
Bisecting: 7460 revisions left to test after this (roughly 13 steps)
[4aa705b18bf17c4ff33ff7bbcd3f0c596443fa81] Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Does this mean I may have to compile and test up 13 Kernels?

Thank you!

** Attachment added: "Output of git log --oneline Ubuntu-4.1.0-3.3..Ubuntu-4.2.0-7.7"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514233/+attachment/4542821/+files/gitlog-oneline-4.1.0-3.3--4.2.0-7.7-2016-0101.txt

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https://bugs.launchpad.net/bugs/1514233

Title:
  Ubuntu 15.10 freezes during operation.

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu freezes during video playback operation when window opened
  MAXIMISED. The freeze occurs with Firefox 42.0, VideoLAN or Totem
  Movie Player, DOES NOT occur if window playing video is resized to
  anything but maximised. It just freezes occasionally since upgrade.
  Upgrade to wild wily.

  ---
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  piero      3117 F.... pulseaudio
  DistroRelease: Ubuntu 15.10
  HibernationDevice: RESUME=UUID=a8107c7e-93b2-48d0-b4a9-bb91c76fea50
  InstallationDate: Installed on 2015-09-01 (72 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Hewlett-Packard HP 14 Notebook PC
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic.efi.signed root=UUID=e343fb82-8a28-4aa7-b323-c560226e41b5 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-18-generic N/A
   linux-backports-modules-4.2.0-18-generic  N/A
   linux-firmware                            1.149.1
  Tags:  wily
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.2.0-18-generic x86_64
  UpgradeStatus: Upgraded to wily on 2015-11-06 (6 days ago)
  UserGroups:

  _MarkForUpload: True
  dmi.bios.date: 10/28/2014
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.32
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 220F
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 57.47
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.32:bd10/28/2014:svnHewlett-Packard:pnHP14NotebookPC:pvr0974120000405F00000620180:rvnHewlett-Packard:rn220F:rvr57.47:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP 14 Notebook PC
  dmi.product.version: 0974120000405F00000620180
  dmi.sys.vendor: Hewlett-Packard

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