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[Launchpad Bug Tracker <575563@xxxxxxxxxxxxxxxxxx>]

[Expired for metacity (Ubuntu) because there has been no activity for 60
days.]

** Changed in: metacity (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/575563

Title:
  Window management stops working after upgrade to Lucid

Status in “metacity” package in Ubuntu:
  Expired

Bug description:
  Binary package hint: metacity

  (Beware: The bug appears on a different kernel than the one reported
  by ubuntu-bug. Details below.)

  After I upgraded from Karmic to Lucid, then after every boot, mouse
  clicking and Alt-Tab work fine in the beginning, but very soon, only
  the item that has keyboard focus responds to the mouse. The rest of
  the computer becomes almost a brick, but not entirely.

  It seems the mouse buttons and Alt-Tab work fine until I click on one
  of the thin strips at the top and the bottom of the screen, or click
  inside a window. After that point, only the item that has keyboard
  focus responds. More details below.

  I suppose this is a severe bug, since non-technical users won't know
  how to get around the problem, and won't be able to use their Ubuntu
  to look for a solution. For them, the upgrade produces a brick.

  WORKAROUND:
  The problem appears when I boot with the kernel that sits at the top of the boot list after the upgrade, kernel 2.6.32-21-generic. I have not seen any similar problems when booting with the preceding kernel, 2.6.31-21-generic. (During this latter boot some errors are reported, but the system seems to work fine so far.)

  My system as reported by ubuntu-bug is the exact machine and partition
  that has the bug, but using the above workaround.

  I have only made a few limited tests, since I have no idea what tests
  will be helpful, and every test requires a time-consuming reboot.
  Here's a detailed list of the symptoms I've seen:

  After boot, clicking on window titlebars works right, windows can be
  raised and dragged. If I then click an icon in the thin strip at the
  top of the screen, the application starts fine, but after this point,
  mouse clicking works only on the icons in the thin bar at the top.
  Nothing else anywhere on the screen responds to the mouse.

  After boot, if I open the Applications menu with Alt-F1, and start
  applications with arrow and return keys, I can do this several times
  to open several applications. After this, I can use the mouse several
  times on the titlebars of different windows to drag, focus and raise
  the windows. Alt-Tab works right too. But if I then click inside a
  Firefox window, so that the webpage gets focus, I can no longer use
  the mouse to raise and drag windows. Then the thin strips at screen
  top and bottom don't respond to the mouse either. Alt-Tab stops
  working too. At this point I tested Alt-F1, and saw the "Applications"
  word get highlighted, but I could not see any menu below. Either the
  menu didn't appear at all, or else it may have appeared hidden behind
  the window that had focus, because that window happened to cover the
  space where the menu should appear.

  After boot, if I click one of the running-application buttons in the
  thin bar at the bottom of the screen, then after this point only those
  buttons respond to the mouse buttons. Clicking windows or the strip at
  the top of the screen has no effect. Clicking the buttons in the
  bottom strip minimizes and unminimizes windows as it should, at least
  when clicking the same button several times. I don't remember if I
  tested on several buttons to see if other buttons worked right.

  In all cases, at the end of the test I could reboot using Ctrl-Alt-Del
  followed by arrow keys and return key.

  Please tell me if you'd like me to test something in more detail or
  submit log files etc. My knowledge of these things is limited, so I
  don't know what may be useful to you.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: metacity 1:2.30.1-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.31-21.59-generic
  Uname: Linux 2.6.31-21-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Wed May  5 03:30:56 2010
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: metacity

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