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[Runar Ingebrigtsen <585765@xxxxxxxxxxxxxxxxxx>]

I am currently running 13.04 and the same problem is still present. It's
been with me since 12.04

But now I have discovered a pattern to these freezes: My power cord is
always unplugged when Ubuntu freezes.

I have a usage pattern that might have an impact: Whenever the screen
saver is starting (the desktop is fading out), I push shift or move my
mouse to avoid having to write the password. I know, it's odd behavior
since I could just prolong the timeout.

Clearly this has to do with power management, anyway.

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https://bugs.launchpad.net/bugs/585765

Title:
  [HP ProBook 6440b] Ubuntu 10.04 random freezes

Status in The Linux Kernel:
  New
Status in “linux” package in Ubuntu:
  Incomplete
Status in “xorg-server” package in Ubuntu:
  Invalid

Bug description:
  Hello,

  on my new laptop, a HP ProBook 6440b (with Core i5 and a plain Intel
  Chipset, 4GB RAM) I get randomly freezes of the whole system. I can't
  reproduce that, what means I don't know a aplication or usage of the
  system making it freeze. sometimes I have uptimes of a day, without
  freeze and sometimes it freezes right after booting the system.

  I found out, that sometimes the MagicSysRQ (R-E-I-S-U-B) works and let
  me shut down the system, sometimes not. I don't know what makes that
  difference. In the system log I can't find any unusual entries. But I
  foun that the system log is still runing, so shuting down the wifi
  with the notebooks hardware switch for example is logged. Also the
  Wifi network connection to my router is not interrupted.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: linux-image-2.6.32-22-generic 2.6.32-22.33
  Regression: No
  Reproducible: No
  ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-22-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  florian    1689 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xd4900000 irq 17'
     Mixer name	: 'Intel G45 DEVIBX'
     Components	: 'HDA:111d7603,103c1722,00100202 HDA:11c11040,103c3066,00100200 HDA:80862804,80860101,00100000'
     Controls      : 23
     Simple ctrls  : 14
  Date: Wed May 26 11:03:07 2010
  EcryptfsInUse: Yes
  Frequency: Once a day.
  HibernationDevice: RESUME=UUID=24088f3d-7be1-4efd-a05a-d1fac42086df
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  MachineType: Hewlett-Packard HP ProBook 6440b
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=ac1bccdd-e231-45c3-bfde-991ae9549f0f ro quiet splash
  ProcEnviron:
   LANG=de_DE.utf8
   SHELL=/bin/bash
  RelatedPackageVersions: linux-firmware 1.34
  SourcePackage: linux
  dmi.bios.date: 01/27/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68CDD Ver. F.04
  dmi.board.name: 1722
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 29.2B
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68CDDVer.F.04:bd01/27/2010:svnHewlett-Packard:pnHPProBook6440b:pvr:rvnHewlett-Packard:rn1722:rvrKBCVersion29.2B:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP ProBook 6440b
  dmi.sys.vendor: Hewlett-Packard

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