Public bug reported:

Binary package hint: unity

I don't have a method to reproduce this yet but it does happen to me
several times a day.

The keyboard input is lost from all windows in the workspace, and it
also seems to be lost from compiz.  That is general hot keys to switch
workspaces, alt-tab, alt-F1, alt-F2, etc do not work.  The only hot key
that appears to work is the super key which behaves as normal.

Once I click in a window to give it focus or launch a new application
using clicking in the dock or using the super key, the behavior
disappears, and everything works as expected.

I have experienced this with a single and multiple windows in a
workspace.  It may be related to switching workspaces but I have not
been able to duplicate when watching for it.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.8.4-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.39-0.2-generic 2.6.39-rc2
Uname: Linux 2.6.39-0-generic x86_64
Architecture: amd64
CheckboxSubmission: 634e340822dbba19cfc2dc121e877bff
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
CompizPlugins: 
[core,bailer,detection,composite,opengl,compiztoolbox,decor,gnomecompat,regex,vpswitch,resize,place,imgpng,mousepoll,session,unitymtgrabhandles,grid,snap,move,animation,wall,workarounds,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1400x1050 1280x1024 1024x768 800x600 640x480
 edid-base64: 
AP///////wAwrgVAAAAAAAAQAQOAGRJ46q9AlVZKjyUgUFQhCACBgAEBAQEBAQEBAQEBAQEBICF4yFAaCkAUdCUA9bgAAAAZAAAAEAAAAAAAAAAAAAAAAAAAAAAADwCQQzIAAAATAgAJ5QAAAAAA/gBIVjEyMVAwMS0xMDEKAHU=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes: 
 edid-base64:
Date: Mon Apr 11 04:14:34 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
EcryptfsInUse: Yes
GraphicsCard:
 Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) 
[8086:2a02] (rev 0c) (prog-if 00 [VGA controller])
   Subsystem: Lenovo T61 [17aa:20b5]
   Subsystem: Lenovo T61 [17aa:20b5]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110330)
MachineType: LENOVO 7762WGS
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.39-0-generic 
root=UUID=edcb10d8-40a5-421c-bd03-9b91d626c068 ro 
crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.39-0.2-generic 2.6.39-rc2
ProcVersionSignature__: Ubuntu 2.6.39-0.2-generic 2.6.39-rc2
Renderer: Unknown
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/12/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7SET37WW (1.23 )
dmi.board.name: 7762WGS
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:bvr7SET37WW(1.23):bd03/12/2009:svnLENOVO:pn7762WGS:pvrThinkPadX61Tablet:rvnLENOVO:rn7762WGS:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7762WGS
dmi.product.version: ThinkPad X61 Tablet
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4+bzr20110407-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu11
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110107+b795ca6e-0ubuntu6

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 natty running-unity ubuntu unity-2d

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https://bugs.launchpad.net/bugs/757435

Title:
  keyboard input lost, when window focus lost in unity

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