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[Andrea Azzarone <1205876@xxxxxxxxxxxxxxxxxx>]

Can you still reproduce that? How often does it happen?

** Changed in: unity
       Status: New => Incomplete

** Changed in: unity (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1205876

Title:
  whole system became unresponsive to clicks and keystrokes for a couple
  of minutes

Status in Unity:
  Incomplete
Status in unity package in Ubuntu:
  Incomplete

Bug description:
  I went to close a couple of windows (Gedit and a Nautilus window),
  both became grey and both showed up the not-responding pupup (to both
  of which I replied "cancel") and the system stayed unresponsive to
  both clicks and keystrokes for a full two minutes or so.

  Mouse cursor was moving fluidly without the smallest jerkyness, but neither clicks nor keystrokes would do nothing.
  Even Ctrl+Alt+F1 wouldn't work (which would have allowed me to open a virtual terminal and have a look at the processes)

  By chance, I had a visible open terminal window with top running just
  prior to the incident, and it wasn't showing high CPU consumption;
  also, the cooler fan speed didn't seem to indicate that was the case.

  After a few minutes everything got back to normal.

  NO MATTER WHAT, keystrokes and clicks must always have the highest
  priority, in shuch a way that it must NEVER, EVER happen that you
  can't even open a virtual terminal with Ctrl+Alt+F1. Something is very
  wrong at a very low level if the whole system can become unresponsive
  due to some process being very busy or even if this was due to
  swapping.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: unity 6.12.0-0ubuntu0.2
  ProcVersionSignature: Ubuntu 3.5.0-37.58-generic 3.5.7.16
  Uname: Linux 3.5.0-37-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.6.1-0ubuntu12
  Architecture: i386
  CompizPlugins: [core,composite,opengl,decor,vpswitch,mousepoll,compiztoolbox,snap,commands,place,resize,session,regex,grid,wall,move,gnomecompat,imgpng,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  Date: Sun Jul 28 18:27:47 2013
  InstallationDate: Installed on 2010-06-23 (1131 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: unity
  UpgradeStatus: Upgraded to quantal on 2013-01-13 (196 days ago)

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