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[Doug Morse <dm@xxxxxxxxxxxxx>]

@Thane: Thanks so much.  This pretty much disconfirms my working
hypothesis, at least for Thunderbird -- that going into Expo view is
necessary to trigger the problem -- but disconfirmation is useful
information nonetheless.

This seems to be a nasty bug in that I suspect it's going to be a hard
one for the developers to nail down.  It's specific to Mozilla software,
and seems to be a bad Mozilla / Unity 3D / Compiz interaction, possibly
also specific to certain video drivers (as not everyone has this problem
-- 68 affected users is a lot, but I suspect small compared to the
active Ubuntu user base who would take the time to report it).

So, the more we can do to narrow down the boundary conditions -- or
define some usage case that _always_ causes the problem for all users
affected -- the more we can help the developers isolate the problem
(obviously).  Unfortunately, I'm not sure what to suggest next, although
one question does come to mind:

Is anyone having this problem with a _fresh_ install of Oneiric (11.10)?
(I for one upgraded from a 11.04 fresh install to 11.10 on its release
date.)

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/872207

Title:
  When Firefox is running in Unity, drop-down menus sometime close when
  opened

Status in Compiz:
  Confirmed
Status in Unity Distro Priority:
  New
Status in “compiz” package in Ubuntu:
  Confirmed
Status in “firefox” package in Ubuntu:
  Confirmed

Bug description:
  This is something which used to happen regularly though not always (I
  switched to using fallback mode for a while because of it).
  Basically, drop-down menus in Firefox such as RSS feeds (or in Natty
  without the global menu the normal application menus were affected
  too) are simply not shown when clicked on.  Context menus also fail to
  appear.  This often disappeared for no apparent reason after I had
  used Firefox for a while.  I haven't seen it for a while, but it has
  just re-appeared, possibly because I started Unity as "unity
  --replace" since I am currently testing an application's behaviour
  with different window managers.

  I'm sorry if this information is a bit threadbare.  Please let me know
  if I can provide any additional helpful information.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: unity 4.22.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.23-0ubuntu2
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,regex,snap,compiztoolbox,place,gnomecompat,resize,session,grid,mousepoll,animation,move,workarounds,imgpng,expo,wall,unitymtgrabhandles,vpswitch,fade,scale,ezoom,unityshell]
  CompositorRunning: compiz
  Date: Tue Oct 11 11:57:45 2011
  DistUpgraded: Log time: 2011-09-08 12:02:24.781017
  DistroCodename: oneiric
  DistroVariant: ubuntu
  DkmsStatus: vboxhost, 4.1.4, 3.0.0-12-generic, x86_64: installed
  GraphicsCard:
   Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:040a]
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  MachineType: Dell Inc. Latitude E6410
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=062b1769-7309-4422-a59c-ad30b109d53c ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: Upgraded to oneiric on 2011-09-27 (14 days ago)
  dmi.bios.date: 11/20/2010
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 0667CC
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A03
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd11/20/2010:svnDellInc.:pnLatitudeE6410:pvr0001:rvnDellInc.:rn0667CC:rvrA03:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6410
  dmi.product.version: 0001
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu3
  version.ia32-libs: ia32-libs 20090808ubuntu25
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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