[Bug 560906] [NEW] nc6400 frequently crashes due to multiple power-related issues

[Tarek Loubani]

Public bug reported:

I believe this is a bit of a meta bug, and I apologize for that aspect.
However, I want to collect the issues and resolutions I've found that
make the HP NC6400 laptop bearable with Lucid. I had the same issues
with Karmic, but didn't pursue them too seriously.

First issue is that the hard drive has the following issue:

https://bugzilla.kernel.org/show_bug.cgi?id=14543

The workaround is automatically running at boot the following script:

https://bugzilla.kernel.org/attachment.cgi?id=25357


Since I fixed that, I noticed another problem that I cannot identify that is triggered by plugging / unplugging the laptop's AC Power. As a result, I have disabled the following files by commenting out the following contents of /usr/lib/pm-utils/power.d/
powersave-policy-hda-powerdown
powersave-policy-dirty-writeback
anacron
powersave-policy-sata-link-power


I had remarked when monitoring the syslog from other computers that these were executed consistently before crashes. It's not every time they execute (or that AC is plugged / unplugged) that there is a crash.. But they are always there before a crash.

tarek : )

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-19-generic 2.6.32-19.28
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  agnes      1345 F.... pulseaudio
 /dev/snd/pcmC0D0p:   agnes      1345 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xe0700000 irq 16'
   Mixer name	: 'Analog Devices AD1981'
   Components	: 'HDA:11d41981,103c30ac,00100200 HDA:11c13026,103c30ac,00100700'
   Controls      : 13
   Simple ctrls  : 11
Date: Sun Apr 11 14:29:58 2010
HibernationDevice: RESUME=UUID=19ed29a0-1413-40a0-8759-fc4c89f09f59
MachineType: Hewlett-Packard HP Compaq nc6400 (EN198UA)
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=db52855b-5462-4057-a8c5-3fafd13e4fad ro quiet splash
ProcEnviron:
 LANG=en_CA.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
UserAsoundrc:
 # ALSA library configuration file
 
 # Include settings that are under the control of asoundconf(1).
 # (To disable these settings, comment out this line.)
 </home/agnes/.asoundrc.asoundconf>
dmi.bios.date: 09/05/2007
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68YCD Ver. F.0B
dmi.board.name: 30AC
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 56.36
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68YCDVer.F.0B:bd09/05/2007:svnHewlett-Packard:pnHPCompaqnc6400(EN198UA):pvrF.0B:rvnHewlett-Packard:rn30AC:rvrKBCVersion56.36:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq nc6400 (EN198UA)
dmi.product.version: F.0B
dmi.sys.vendor: Hewlett-Packard

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid needs-upstream-testing regression-potential

-- 
nc6400 frequently crashes due to multiple power-related issues
https://bugs.launchpad.net/bugs/560906
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