Public bug reported: I don't know if this is a Firefox bug or a Compiz one. Feel free to reassign. What happens is that maximized Firefox windows with the keyboard focus cast shadows on windows on adjacent monitors on a multimonitor setup. It appears to happen only with Firefox, I will report if I see it happen with other programs.
This is reported as fixed in bug #928807, so perhaps it wasn't (fully), or it has regressed. Or maybe this is an unrelated problem. I'm seeing it in Ubuntu 14.04 64-bit on a laptop with an NVidia GeForce GTX 765M. Attached is a screenshot showing the problem. I have three monitors, with the launcher placed on the middle one. The editor window is on my third monitor and as you can see Firefox is casting a shadow on it. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: compiz 1:0.9.11+14.04.20140423-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sun Jun 8 17:24:34 2014 DistUpgraded: 2014-05-17 01:18:49,586 DEBUG enabling apt cron job DistroCodename: trusty DistroVariant: ubuntu GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: CLEVO/KAPOK Computer Device [1558:3537] Subsystem: CLEVO/KAPOK Computer Device [1558:3537] InstallationDate: Installed on 2013-07-31 (311 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Notebook W350STQ/W370ST PackageArchitecture: all ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic root=UUID=6ca812df-7fe0-490d-af8c-6cc9758c0d89 ro "acpi_osi=!Windows 2012" acpi_backlight=vendor quiet splash vt.handoff=7 SourcePackage: compiz UpgradeStatus: Upgraded to trusty on 2014-05-16 (22 days ago) dmi.bios.date: 06/14/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W350STQ/W370ST dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd06/14/2013:svnNotebook:pnW350STQ/W370ST:pvrNotApplicable:rvnNotebook:rnW350STQ/W370ST:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.name: W350STQ/W370ST dmi.product.version: Not Applicable dmi.sys.vendor: Notebook version.compiz: compiz 1:0.9.11+14.04.20140423-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Sun Jun 8 15:54:00 2014 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 19088 vendor GSM xserver.version: 2:1.15.1-0ubuntu2 ** Affects: compiz (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1327820 Title: Multi-monitor - Maximized Firefox windows cast shadows on adjacent monitors Status in “compiz” package in Ubuntu: New Bug description: I don't know if this is a Firefox bug or a Compiz one. Feel free to reassign. What happens is that maximized Firefox windows with the keyboard focus cast shadows on windows on adjacent monitors on a multimonitor setup. It appears to happen only with Firefox, I will report if I see it happen with other programs. This is reported as fixed in bug #928807, so perhaps it wasn't (fully), or it has regressed. Or maybe this is an unrelated problem. I'm seeing it in Ubuntu 14.04 64-bit on a laptop with an NVidia GeForce GTX 765M. Attached is a screenshot showing the problem. I have three monitors, with the launcher placed on the middle one. The editor window is on my third monitor and as you can see Firefox is casting a shadow on it. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: compiz 1:0.9.11+14.04.20140423-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sun Jun 8 17:24:34 2014 DistUpgraded: 2014-05-17 01:18:49,586 DEBUG enabling apt cron job DistroCodename: trusty DistroVariant: ubuntu GraphicsCard: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller]) Subsystem: CLEVO/KAPOK Computer Device [1558:3537] Subsystem: CLEVO/KAPOK Computer Device [1558:3537] InstallationDate: Installed on 2013-07-31 (311 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Notebook W350STQ/W370ST PackageArchitecture: all ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic root=UUID=6ca812df-7fe0-490d-af8c-6cc9758c0d89 ro "acpi_osi=!Windows 2012" acpi_backlight=vendor quiet splash vt.handoff=7 SourcePackage: compiz UpgradeStatus: Upgraded to trusty on 2014-05-16 (22 days ago) dmi.bios.date: 06/14/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W350STQ/W370ST dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd06/14/2013:svnNotebook:pnW350STQ/W370ST:pvrNotApplicable:rvnNotebook:rnW350STQ/W370ST:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.name: W350STQ/W370ST dmi.product.version: Not Applicable dmi.sys.vendor: Notebook version.compiz: compiz 1:0.9.11+14.04.20140423-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Sun Jun 8 15:54:00 2014 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 19088 vendor GSM xserver.version: 2:1.15.1-0ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1327820/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp