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[Launchpad Bug Tracker <1008266@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/1008266

Title:
  X freezes several times a day

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Ever since I installed Ubuntu 12.04 x86-64, I've experienced several X
  crashes/freezes each day.  Sometimes it happens when I play a Flash
  video on the web, or when I play a local video file. Sometimes it
  happens when I have multiple Firefox windows open, and I click on the
  dock icon to reveal both windows.

  Sadly, although the bug triggers frequently, I've had difficulty
  reproducing it consistently.  I'll play a video and X will crash, yet
  after restarting X or rebooting the machine, the same video plays
  fine.

  When the bug occurs, the screen freezes with the exception of the
  mouse cursor.  I can SSH into the machine.  Killing the X process
  *usually* works just fine: the desktop environment starts right back
  up and I can continue using the machine until the next freeze.
  However, the last time I tried this the desktop environment never
  restarted, and I rebooted the machine.

  My current uptime is 18 hours, but most of that time the machine was
  sitting there idle.  If history is any indication, I can expect a
  crash by the end of the day.

  Anecdotally, the freeze seems more likely when I have several
  applications open (Firefox with several tabs, some of which may
  contain Flash video; the Terminal; my Downloads directory in a file
  manager window; and perhaps VLC).  Freezes seem more likely when using
  Compiz effects like when I switch applications.

  Please excuse me for not using Ubuntu-specific terminology.  I use
  several different OSes on any given day and it's hard for me to keep
  track of the names of every application, subsystem, etc.

  I don't normally maintain distribution code, so please let me know what else I can do to help fix this bug.
  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ben        2386 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xed220000 irq 48'
     Mixer name	: 'SigmaTel STAC9227'
     Components	: 'HDA:83847618,80862008,00100201'
     Controls      : 35
     Simple ctrls  : 22
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=1f62a690-6f78-4b61-b8a0-107ba26ae798
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=45bfb785-a450-4599-98ac-a3cfa034a992 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
  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
  StagingDrivers: mei
  Tags:  precise staging precise staging
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 09/06/2007
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: CO96510J.86A.5960.2007.0906.0130
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: DQ965GF
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAD41676-601
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrCO96510J.86A.5960.2007.0906.0130:bd09/06/2007:svn:pn:pvr:rvnIntelCorporation:rnDQ965GF:rvrAAD41676-601:cvn:ct3:cvr:

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