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["Renato S. Yamane" <1537209@xxxxxxxxxxxxxxxxxx>]

Tested with Kernel 4.6 (from kernel.org): I can boot with no problem!
Tested with Kubuntu 16.04 (live-cd): I cannot boot!
Tested with Kubuntu 15.10 (kernel 4.2.0-36): I cannot boot!
Tested with Kubuntu 15.10 (kernel 3.19.0-43): I can boot with no problem!

$ uname -a
Linux Eng-01 4.6.0yamane #1 SMP Fri May 20 20:08:32 BRT 2016 x86_64 x86_64 x86_64 GNU/Linux


** Attachment added: ".config used to compile Linux Kernel 4.6"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1537209/+attachment/4667270/+files/.config

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

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https://bugs.launchpad.net/bugs/1537209

Title:
  Kernel doesn't load after kubuntu upgrade (from 15.04 to 15.10)

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  After updrade my laptop Lenovo T430u from Kubuntu Vivid to Wily), I
  can not load the kernel 4.2.0-23 or 4.2.0-25 (not tested other
  versions).

  The only kernel I can use is 3.19.0-43 (from Kubuntu Vivid).

  If I choose 4.2.0-xx kernel, I just can see a black screen.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-25-generic 4.2.0-25.30
  ProcVersionSignature: Ubuntu 3.19.0-43.49-generic 3.19.8-ckt10
  Uname: Linux 3.19.0-43-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  yamane     1879 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Fri Jan 22 19:13:09 2016
  HibernationDevice: RESUME=UUID=f11f0511-b75c-4a11-a486-9119d10ee8d7
  InstallationDate: Installed on 2014-03-08 (685 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140308)
  MachineType: LENOVO 33525SP
  ProcEnviron:
   LANGUAGE=pt_BR:pt:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=pt_BR.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-43-generic root=UUID=0575faf0-2a03-4d14-8eff-4e45024318f0 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-43-generic N/A
   linux-backports-modules-3.19.0-43-generic  N/A
   linux-firmware                             1.149.3
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to wily on 2016-01-15 (6 days ago)
  dmi.bios.date: 01/11/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: H6ET90WW (2.08 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 33525SP
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 STD EM DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrH6ET90WW(2.08):bd01/11/2013:svnLENOVO:pn33525SP:pvrThinkPadT430u:rvnLENOVO:rn33525SP:rvrWin8STDEMDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 33525SP
  dmi.product.version: ThinkPad T430u
  dmi.sys.vendor: LENOVO

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