Compiz is overloaded - CPU 100%

[Jaromir Obr]

Whenever I login into Unity, compiz CPU goes almost to 100% on both CPU cores. The desktop is unusable. I'm running OSS radeon driver.

$ glxinfo |grep render
direct rendering: Yes
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 0x301)
GL_NV_conditional_render, GL_AMD_draw_buffers_blend

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: compiz 1:0.9.8.2+bzr3377-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-15.23-generic 3.5.4
Uname: Linux 3.5.0-15-generic x86_64
.tmp.unity.support.test.1:

ApportVersion: 2.5.2-0ubuntu4
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,move,grid,vpswitch,regex,imgpng,resize,mousepoll,snap,wall,animation,place,gnomecompat,unitymtgrabhandles,workarounds,session,fade,expo,ezoom,scale,unityshell]
CompositorRunning: compiz
Date: Wed Sep 26 20:11:21 2012
DistUpgraded: 2012-09-08 00:13:12,806 DEBUG enabling apt cron job
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus: vboxhost, 4.2.0, 3.5.0-15-generic, x86_64: installed
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RV620 [Mobility Radeon HD 3400 Series] [1002:95c4] (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems Device [1179:ff62]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64+mac (20111011)
MachineType: TOSHIBA Satellite A300D
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-15-generic root=/dev/mapper/Data-Root ro quiet splash vt.handoff=7
SourcePackage: compiz
UpgradeStatus: Upgraded to quantal on 2012-09-07 (18 days ago)
dmi.bios.date: 09/01/2009
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: 2.10
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: AMD
dmi.chassis.version: None
dmi.modalias: dmi:bvnInsydeCorp.:bvr2.10:bd09/01/2009:svnTOSHIBA:pnSatelliteA300D:pvrPSAHCE-00F00JCZ:rvnTOSHIBA:rnPortablePC:rvrBaseBoardVersion:cvnAMD:ct10:cvrNone:
dmi.product.name: Satellite A300D
dmi.product.version: PSAHCE-00F00JCZ
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.8.2+bzr3377-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.39-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0~git20120917.7cfd42ce-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0~git20120917.7cfd42ce-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.8-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu1

[Omer Akram (om26er)]

Thanks for the bug report. This particular bug has already been reported and is a duplicate of bug 1046497, so is being marked as such. Any further discussion regarding the bug should occur in the other report. Feel free to report any other bugs you may find.

[Daniel van Vugt (vanvugt)]

Jaromir,

Please try running "jockey-gtk" to see if a better graphics driver is available. If there is one that supports your graphics card AND supports Unity then it will solve this problem.

[Jaromir Obr (jaromir-obr)]

Hi Daniel,
thank you for your help. Unfortunately the proprietary driver (fglrx) doesn't work with my graphics card Radeon HD 3400 in Ubuntu 12.10, whereas it did in Ubuntu 12.04.
Hope it will be solved by AMD before the final release of Ubuntu 12.04 (bug 1032672).

[Launchpad Janitor (janitor)]

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