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[Alberto Salvia Novella <es20490446e@xxxxxxxxx>]

*** This bug is a duplicate of bug 1492764 ***
    https://bugs.launchpad.net/bugs/1492764

** This bug has been marked a duplicate of bug 1492764
   [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)

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https://bugs.launchpad.net/bugs/1522596

Title:
  I dont know

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I dont know whats wrong but its annoying and its making my computer slow and lightdm stops working. Sometimes the tty are not working.
  Just shows errors like 
  [  421.764373] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
  [  421.764594] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)
  [  421.765109] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in ips_enabled (expected 1, found 0)

  Here i tried to open gdm instead lightdm

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-18-generic 4.2.0-18.22
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  Uname: Linux 4.2.0-18-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  Date: Thu Dec  3 22:47:44 2015
  HibernationDevice: RESUME=UUID=0f7f19d0-7e4e-492c-92e5-f55eba8d6939
  InstallationDate: Installed on 2015-10-23 (41 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: LENOVO 20354
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic.efi.signed root=UUID=a6c2d2ef-8b41-4003-8d93-d1bcf28a7cc0 ro noprompt persistent quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-18-generic N/A
   linux-backports-modules-4.2.0-18-generic  N/A
   linux-firmware                            1.149.2
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/31/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 9BCN26WW
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Lancer 5A5
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058WIN
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo Z50-70
  dmi.modalias: dmi:bvnLENOVO:bvr9BCN26WW:bd07/31/2014:svnLENOVO:pn20354:pvrLenovoZ50-70:rvnLENOVO:rnLancer5A5:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoZ50-70:
  dmi.product.name: 20354
  dmi.product.version: Lenovo Z50-70
  dmi.sys.vendor: LENOVO

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