minimize firefox don't work , and after is difficult to focus other application

[Diska]

as you can see in attachment when i minimize firefox , there some line on screen and other application don't response on click.

if i click on, the lines dissappear and all work well

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 7.0~b6+build1+nobinonly-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: diska 1643 F.... pulseaudio
 /dev/snd/controlC0: diska 1643 F.... pulseaudio
BuildID: 20110918113858
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf5e00000 irq 44'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,104d4600,00100004'
   Controls : 13
   Simple ctrls : 8
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xf0040000 irq 45'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,104d4600,00100200'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Channel: beta
Date: Sun Sep 18 23:27:13 2011
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
IpRoute:
 default via 192.168.1.1 dev eth0 proto static
 169.254.0.0/16 dev eth0 scope link metric 1000
 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.2
Profiles: Profile0 (Default) - LastVersion=7.0/20110918113858 (Running)
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to oneiric on 2011-09-13 (5 days ago)
dmi.bios.date: 07/20/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0300Y8
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0300Y8:bd07/20/2010:svnSonyCorporation:pnVPCEB1Z1E:pvrC6045YWV:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCEB1Z1E
dmi.product.version: C6045YWV
dmi.sys.vendor: Sony Corporation

[Diska (discardi-nicola)]

it's can be a unity / compiz bug , with gnome-shell there's no problem

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Omer Akram (om26er)]

thanks for your bug report. Is that still an issue in Ubuntu 12.04? Can you please test that an let us know? (Please make sure nautilus is up and running.

[Launchpad Janitor (janitor)]

[Expired for Unity because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

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