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[Bug 1509854] Re: drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled

 

cropr, the next step is to fully reverse commit bisect from kernel 4.2
to 4.3-rc7 in order to identify the last bad commit, followed
immediately by the first good one. Once this commit has been identified,
then it may be reviewed as a candidate for backporting into your
release. Could you please do this following
https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F
?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags added: kernel-fixed-upstream needs-reverse-bisect

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

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https://bugs.launchpad.net/bugs/1509854

Title:
  drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Kubuntu 15.10
  machine Dell XPS13 2013

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19 [modified: boot/vmlinuz-4.2.0-16-generic]
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ruben      1407 F.... pulseaudio
   /dev/snd/controlC0:  ruben      1407 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Sun Oct 25 20:31:40 2015
  HibernationDevice: RESUME=UUID=b524093d-9937-40ab-8e3d-bf76a3e7232f
  InstallationDate: Installed on 2015-10-25 (0 days ago)
  InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: Dell Inc. XPS13 9333
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic.efi.signed root=UUID=a2e24065-8699-4a72-ba22-75d1bf89458b ro noprompt quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  SourcePackage: linux
  UdevLog: Error: [Errno 2] Bestand of map bestaat niet: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0GFTRT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA02:bd12/11/2013:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.

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References