Public bug reported:

It's now the second time that when I shut down, after the normal shut down 
procedures there is suddenly a black screen with console output indicating some 
error*. The image changes every one or two minutes, apparently scrolling down 
in the console output, revealing a stack trace after the error.
I managed to get my camera and take pictures of all screens after the first one 
(regrettably, I was too late for that). See attachment.


* Actually, I always shortly see console output when shutting down,
which is also a bit nasty, but usually there are no (major) error
messages. This occurs ever since I installed precise, but should
probably be a different bug report. Maybe I'll make a video once.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-24-generic 3.2.0-24.37
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  thomas     2259 F.... pulseaudio
 /dev/snd/controlC0:  thomas     2259 F.... pulseaudio
 /dev/snd/pcmC0D0p:   thomas     2259 F...m pulseaudio
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not 
found.
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfeb00000 irq 16'
   Mixer name   : 'Realtek ALC892'
   Components   : 'HDA:10ec0892,18497892,00100302'
   Controls      : 43
   Simple ctrls  : 20
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xfea40000 irq 74'
   Mixer name   : 'ATI R6xx HDMI'
   Components   : 'HDA:1002aa01,00aa0100,00100200'
   Controls      : 6
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Fri May 11 10:55:40 2012
HibernationDevice: RESUME=UUID=6dfa6ff4-bb98-473e-917b-ce74e05fa64a
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 
(20120425)
IwConfig:
 lo        no wireless extensions.
 
 eth1      no wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB:
 
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic 
root=UUID=240ad5e9-0dcf-4400-9ccd-f6772eca03aa ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-24-generic N/A
 linux-backports-modules-3.2.0-24-generic  N/A
 linux-firmware                            1.79
RfKill:
 
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/31/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.30
dmi.board.name: 970 Extreme3
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP1.30:bd01/31/2012:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn970Extreme3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

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


** Tags: amd64 apport-bug precise

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https://bugs.launchpad.net/bugs/997968

Title:
  Error and stack trace on shutdown

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