Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: thunderbird (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/992326

Title:
  Thunderbird polls continuously, using an entire core

Status in “thunderbird” package in Ubuntu:
  Confirmed

Bug description:
  This behavior began with upgrade to 12.04, no problems in 11.10.

  strace reveals that the cpu is consumed by continuous polling.

  Putting thunderbird "offline" stops the polling.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: thunderbird 11.0.1+build1-0ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
  Uname: Linux 3.2.0-24-generic x86_64
  AddonCompatCheckDisabled: False
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  weinberg   6305 F.... pulseaudio
  BuildID: 20120410225911
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfc020000 irq 49'
     Mixer name : 'Conexant CX20561 (Hermosa)'
     Components : 'HDA:14f15051,17aa211c,00100000 
HDA:14f12c06,17aa2122,00100000'
     Controls      : 21
     Simple ctrls  : 13
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
7VHT12WW-1.01'
     Mixer name : 'ThinkPad EC 7VHT12WW-1.01'
     Components : ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Channel: release
  Date: Mon Apr 30 20:52:35 2012
  EcryptfsInUse: Yes
  ForcedLayersAccel: False
  IpRoute:
   default via 10.0.1.254 dev wlan0  proto static 
   10.0.0.0/22 dev wlan0  proto kernel  scope link  src 10.0.1.8  metric 2 
   169.254.0.0/16 dev wlan0  scope link  metric 1000
  IwConfig: Error: [Errno 2] No such file or directory
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/usr/bin/tcsh
  Profiles: Profile0 (Default) - LastVersion=11.0.1/20120410225911 (Running)
  RfKill: Error: [Errno 2] No such file or directory
  RunningIncompatibleAddons: False
  SourcePackage: thunderbird
  UpgradeStatus: Upgraded to precise on 2012-04-06 (24 days ago)
  dmi.bios.date: 02/13/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7UET61WW (2.07 )
  dmi.board.name: 2764CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnLENOVO:bvr7UET61WW(2.07):bd02/13/2009:svnLENOVO:pn2764CTO:pvrThinkPadT400:rvnLENOVO:rn2764CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2764CTO
  dmi.product.version: ThinkPad T400
  dmi.sys.vendor: LENOVO

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