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[Bug 940603] Re: white box randomly shows up at top left corner blocking applications from using stuff under it

 

Interestingly I encountered the same issue when working on Xmir rootless
support this week. The bug there was that the compositing window manager
(now Xmir itself) failed to notice that some sub-windows are flagged as
un-viewable in the X server, so those odd little windows need to
explicitly not be displayed (unless they are marked as viewable).

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https://bugs.launchpad.net/bugs/940603

Title:
  white box randomly shows up at top left corner blocking applications
  from using stuff under it

Status in Compiz Animations Plugin:
  Fix Committed
Status in Compiz Main Plugins:
  Fix Released
Status in Unity:
  Fix Released
Status in compiz package in Ubuntu:
  Fix Released
Status in compiz-plugins-main package in Ubuntu:
  Fix Released
Status in unity package in Ubuntu:
  Fix Released

Bug description:
  I've had this happen 3 times now.  I've gotten a white rectangular box
  show up in the corner of the screen.  The box is of varying sizes, and
  only goes away after a reboot.

  I've been using chrome every time it's happened, but I don't know that
  it's caused by chrome specifically.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: unity 5.4.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
  Uname: Linux 3.2.0-17-generic i686
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.93-0ubuntu2
  Architecture: i386
  CompizPlugins: [core,bailer,detection,composite,opengl,decor,vpswitch,move,mousepoll,gnomecompat,snap,compiztoolbox,wall,regex,resize,imgpng,place,animation,resizeinfo,grid,fade,session,workarounds,expo,unitymtgrabhandles,scale,ezoom,unityshell]
  CompositorRunning: compiz
  Date: Fri Feb 24 14:27:47 2012
  DistUpgraded: Log time: 2012-02-17 15:21:15.462721
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-dell-lucid-une-20100427-1
  DistroCodename: precise
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller])
     Subsystem: Dell Latitude D630 [1028:01f9]
     Subsystem: Dell Device [1028:01f9]
  InstallationMedia: Ubuntu 10.04 "Lucid" - Build i386 LIVE Binary 20100427-14:29
  MachineType: Dell Inc. Latitude D630
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic root=UUID=fa8d2464-5942-4868-877b-6bed2f9b7c15 ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: Upgraded to precise on 2012-02-18 (6 days ago)
  dmi.bios.date: 01/11/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 0KU184
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd01/11/2008:svnDellInc.:pnLatitudeD630:pvr:rvnDellInc.:rn0KU184:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude D630
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
  version.libdrm2: libdrm2 2.4.30-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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