Comment 2 for bug 791074

Yeah, we're binding the framebuffer wrong. I had a look into this bug
I'm not sure what's causing it. Maybe if we get time I can get one of
our GL experts to take a look.

On Wed, Jun 1, 2011 at 3:14 PM, Bogdan Butnaru
<email address hidden> wrote:
> Public bug reported:
>
> Binary package hint: compiz
>
> Hello! On Natty, if both “Window decorations” and “Blur” plugins are
> enabled, and the settings for blur include “Alpha blur”, the windows
> where alpha blur applies have messed up shadows. (I use “normal” as the
> window filter for alpha blur; examples of transparent areas are the
> gnome terminal in some profiles, and unfocused window title bars, and
> some popups.)
>
> First  of all, the shadowed areas are also blured, which I believe to be
> wrong behavior. (Only translucent part of “logical” windows should be
> blured, not effects like shadow.)
>
> Second, the shadow becomes “messy”: it’s a dynamic bug, the exact
> effects vary when moving windows around, including darkening or
> lightening of the shadow, and various lines and areas of varying
> opacity. I’m including a screenshot with an example.
>
> (CCSM shows “/usr/bin/compiz-decorator” as the “Command” in the window
> decorations plugin, by the way.)
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: compiz 1:0.9.4+bzr20110415-0ubuntu2
> ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
> Uname: Linux 2.6.38-9-generic x86_64
> NonfreeKernelModules: nvidia
> .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
> .proc.driver.nvidia.registry: Binary: ""
> .proc.driver.nvidia.version:
>  NVRM version: NVIDIA UNIX x86_64 Kernel Module  270.41.06  Mon Apr 18 14:53:56 PDT 2011
>  GCC version:  gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
> Architecture: amd64
> CompizPlugins: [core,bailer,detection,composite,opengl,decor,titleinfo,mousepoll,blur,move,obs,thumbnail,compiztoolbox,snap,regex,place,imgpng,vpswitch,grid,extrawm,gnomecompat,resize,animation,wall,session,expo,workarounds,ezoom,animationaddon,staticswitcher,fade,scale,scaleaddon]
> CompositorRunning: compiz
> Date: Wed Jun  1 09:00:23 2011
> DistUpgraded: Log time: 2010-08-16 14:31:52.248788
> DistroCodename: natty
> DistroVariant: ubuntu
> DkmsStatus:
>  nvidia-current, 270.41.06, 2.6.38-9-generic, x86_64: installed
>  nvidia-current, 270.41.06, 2.6.38-8-generic, x86_64: installed
>  vboxhost, 4.0.0, 2.6.37-12-generic, x86_64: installed
> EcryptfsInUse: Yes
> GraphicsCard:
>  nVidia Corporation G94 [GeForce 9600 GT] [10de:0622] (rev a1) (prog-if 00 [VGA controller])
>    Subsystem: Giga-byte Technology Device [1458:3488]
> JockeyStatus:
>  xorg:nvidia_173 - NVIDIA accelerated graphics driver (Proprietary, Disabled, Not in use)
>  xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, Not in use)
> MachineType: System manufacturer P5Q-PRO
> PackageArchitecture: all
> ProcEnviron:
>  LANGUAGE=en_US:en
>  PATH=(custom, user)
>  LANG=en_US.UTF-8
>  SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-9-generic root=UUID=f345b250-3225-489c-a2a5-5c7a2b21a0fd ro
> ProcVersionSignature_: Ubuntu 2.6.38-9.43-generic 2.6.38.4
> Renderer: Unknown
> SourcePackage: compiz
> UpgradeStatus: Upgraded to natty on 2010-08-16 (288 days ago)
> dmi.bios.date: 11/04/2008
> dmi.bios.vendor: American Megatrends Inc.
> dmi.bios.version: 1501
> dmi.board.asset.tag: To Be Filled By O.E.M.
> dmi.board.name: P5Q-PRO
> dmi.board.vendor: ASUSTeK Computer INC.
> dmi.board.version: Rev 1.xx
> dmi.chassis.asset.tag: Asset-1234567890
> dmi.chassis.type: 3
> dmi.chassis.vendor: Chassis Manufacture
> dmi.chassis.version: Chassis Version
> dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1501:bd11/04/2008:svnSystemmanufacturer:pnP5Q-PRO:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5Q-PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
> dmi.product.name: P5Q-PRO
> dmi.product.version: System Version
> dmi.sys.vendor: System manufacturer
> version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
> version.ia32-libs: ia32-libs 20090808ubuntu13
> version.libdrm2: libdrm2 2.4.23-1ubuntu6
> version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
> version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 7.10.2-0ubuntu2
> version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
> version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
> version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
> version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
> version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
> version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7
>
> ** Affects: compiz (Ubuntu)
>     Importance: Undecided
>         Status: New
>
>
> ** Tags: amd64 apport-bug compiz-0.9 natty ubuntu
>
> --
> You received this bug notification because you are a member of compiz
> packagers, which is subscribed to compiz in Ubuntu.
> https://bugs.launchpad.net/bugs/791074
>
> Title:
>  blur plugin messes up window shadows
>
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--
Sam Spilsbury