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[Launchpad Bug Tracker <1085830@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/1085830

Title:
  Regression: Kernel 3.5.0-19 does not boot on HP ProBook 4540s (with
  UEFI)

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  The previous kernel image (3.5.0-18-generic) works fine (except for
  USB, see Bug #1079073 ).

  Symptoms:
  If I choose the standard boot option for 3.5.0-19 from my point of view the system freezes. The screen still displays the Grub window and I can reboot the system with Ctrl-alt-del.
  If I choose the recovery mode boot option the screen displays distorted (and thus unreadable) text. I can use the sysrq keys to reboot the system, but apparently the kernel is broken enough to not even be able to write something to /var/log/kern.log (I booted the system at about Dec  3 09:30:30 which you probably won't see in the logs) .

  I'd be happy to do further diagnostics if you could direct me how to
  do them.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-19-generic 3.5.0-19.30
  ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
  Uname: Linux 3.5.0-18-generic x86_64
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jakob      2110 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Date: Mon Dec  3 09:36:36 2012
  HibernationDevice: RESUME=UUID=6bc49cc9-fe98-4eec-a2ac-9c919a9ad172
  InstallationDate: Installed on 2012-11-14 (18 days ago)
  InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Release amd64(20121023)
  IwConfig:
   eth0      no wireless extensions.

   lo        no wireless extensions.
  MachineType: Hewlett-Packard HP ProBook 4540s
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=screen-bce
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-18-generic.efi.signed root=/dev/mapper/gnome-root ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-18-generic N/A
   linux-backports-modules-3.5.0-18-generic  N/A
   linux-firmware                            1.95
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/31/2012
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68IRR Ver. F.31
  dmi.board.name: 17F6
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 58.1D
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68IRRVer.F.31:bd08/31/2012:svnHewlett-Packard:pnHPProBook4540s:pvrA1019D1103:rvnHewlett-Packard:rn17F6:rvrKBCVersion58.1D:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP ProBook 4540s
  dmi.product.version: A1019D1103
  dmi.sys.vendor: Hewlett-Packard

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